United States Patent
`[19]
`[11] Patent Number:
`5,943,482
`
`Culley et al.
`[45] Date of Patent:
`Aug. 24, 1999
`
`US005943482A
`
`[54] EXPANSION CARD INSERTION AND
`REMOVAL
`
`[75]
`
`Inventors: Paul R. Culley, Cypress; Alan L.
`Goodrum, TOIIlball; Raymond Y.L.
`Chow, Cypress; Barry S. Basile,
`Houston, all of TeX.
`
`5,555,510
`9/1996 Verseput et a1.
`........................ 395/282
`5,581,712 12/1996 Herrman ........... 395/283
`
`
`..... 307/147
`5,625,238
`4/1997 Ady et a1.
`
`.................................... 361/755
`5/1997 Wright
`5,629,836
`FOREIGN PATENT DOCUMENTS
`
`0 241 905
`0 254 456
`
`10/1987 European Pat. Off.
`1/1988 European Pat. Off.
`
`.
`.
`
`[73] Assignee: Compaq Computer Corporation,
`Houston TeX.
`’
`
`28 50 440
`34 09 021
`W0 93/15459
`
`5/1979 Germany ~
`9/1985 Germany .
`8/1993 WIPO .
`
`[21] Appl. No.2 08/658,602
`
`[22]
`
`Filed:
`
`Jun. 5, 1996
`
`6
`
`...................................................... G06F 13/00
`Int. Cl.
`[51]
`...................... 395/283; 395/750.01; 361/798
`[52] US. Cl.
`[58] Field Of Search ..................................... 395/283, 750,
`395/281, 282, 750.01, 750.02, 750.07; 439/73,
`803, 832, 863, 864; 361/726, 732, 740,
`759, 798
`
`L56l
`
`_
`References Clted
`U.S. PATENT DOCUMENTS
`
`................. 317/101
`3,767,974 10/1973 Donovan, Jr. et a1.
`..... 339/75
`3,853,379
`12/1974 Goodman et a1.
`
`~~~~~33252
`2723274961); 131322 IéaGreco 6t a1~ ~~
`peraw ..............
`,
`,
`4,835,737
`5/1989 Herrig et a1.
`.
`364/900
`
`4,875,867 10/1989 H00 ...................
`439/157
`
`~~ 364/514
`479997787
`3/1991 MCNaHY 6t a1~
`5,003,431
`3/1991 Imsdahl .........
`361/415
`5,010,426
`4/1991 Krenz ................
`. 360/9701
`
`3/1993 Brockway et a1.
`5,191,970
`200/335
`9/1993 Mutoh et a1.
`5,247,619
`395/325
`
`5/1994 Okuno .......
`5,310,998
`235/380
`5,317,482
`5/1994 BUjfas
`361/798
`573179483
`5/1994 szdler
`361/801
`573867567
`“1995 he“ et al‘
`395/653
`5,428,507
`6/1995 Chatel et a1.
`361/798
`.
`395/283
`9/1995 Fa51g et a1.
`12/1995 Weir ................ 361/58
`
`........................................ 361/754
`4/1996 Joist
`4/1996 Pecone .................................... 395/281
`6/1996 Hamre et a1.
`........................... 307/147
`
`
`
`.
`
`5,454,080
`5,473,499
`5,504,656
`5,513,329
`5,530,302
`
`OTHER PUBLICATIONS
`
`IBM Technical Disclosure Bulletin, v01. 34 N0. 6, Nov.
`1991, pp.
`363—364,
`“Hot Plug Receptacle Actuated
`Mechanical Latch.”
`Maintenance & Service Guide, COMPAQ Deskpro XL
`Series of Personal Computers; pp. 3—18, 5—34; COMPAQ
`Computer Corp., Houston, TX.; Dec. 15, 1995.
`Don Anderson, PCMCIA System Architecture, PC System
`Architecture Series, Second Edition, pp. 21—83, 113—141,
`145—162, 229—309, 321—332, Copyright © 1995 by Mind-
`Share, Inc., Richardson, TX.
`Don Anderson/Tom Shanley CardBus System Architecture
`’
`’
`PC System Architecture Series, pp. 17—29, 39—58, 227—236,
`321—361, Copyright © 1996 by MindShare, Inc., Richard-
`son, TX.
`CompactPCITM Specification, PCI Industrial Computers,
`-
`-
`RCVISIOH 10’ NOV’ 1’ 1995’ pp‘ 14’ 36’ and 50‘
`Primary Examiner—Glenn A Auve
`Attorney, Agent, or Firm—Williams, Morgan & Amerson,
`PC
`.
`.
`[57]
`
`ABSTRACT
`
`A computer system has a bus, a connector for a circuit card,
`and a clamp configured to selectively prevent removal of the
`circuit card from the connector When the clamp is engaged.
`The computer system has circuitry connected to monitor the
`-
`engagement status of the clamp and to regulate delivery of
`h
`b
`d
`h
`f h
`power tot e connector ase ont e engagement stateo t e
`Clamp-
`
`26 Claims, 127 Drawing Sheets
`
`(LEVERS 802 NOT SHOWN)
`
`
`
`LEU CONTROL SIGNALS
`POUT [I l :0]
`
`POWERUP/ POWER DOWN
`SEOUENCE CONTROL
`
`SIGNALS
`
`
`32
`
`30
`
`1
`
`KINGSTON 1010
`
`PARALLEL OUTPUT
`CONTROL SIGNALS
`
`__ ’..____——._—-_—'—"2.
`
`I-
`
`
`POUT [39:0]
`[T011
`T
`REGISTER
`LEVER 802
`PARALLEL
`
`
`INPUT
`STATUS SIGNALS
`4]
`-
`If. 4;}... REGISTER
`
`I" . ‘ .J.
`
`PARALLEL INPUT
`
`STATUS SIGNALS
`
`SHIFT REGISTER
`MISCELLANEOUS STATUS SIGNALS
`(sn_n_ '
`
`1
`
`KINGSTON 1010
`
`

`

`US. Patent
`
`6F—
`
`Aug. 24, 1999
`
`Sheet 1 of 127
`
`5,943,482
`
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 2 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 3 of 127
`
`5,943,482
`
`24
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`
`118
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`130
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`
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`
`BUS
`
`Secondary PCI Bus
`
`FIG. 3
`
`4
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 4 of 127
`
`5,943,482
`
`To
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`‘30
`
`127
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`
`Target Memory
`Range Register (TMRR)
`
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`| / F
`
`_______________
`
`
`
`5
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 5 of 127
`
`5,943,482
`
`PCI UK I
`
`PCLK 33Mhz
`
`PCLK3 mo Mhz
`
`(lamina and PCI state
`machine agic
`
`CABLE_CLK2
`
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`
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`machine agic
`
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`
`6
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 6 of 127
`
`5,943,482
`
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`
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`
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`
`203
`
`FIG. 6
`
`7
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 7 of 127
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`US. Patent
`
`Aug. 24, 1999
`
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 9 of 127
`
`5,943,482
`
`PH|3_DLY
`
`(able Data
`
`CCLK3
`
`FLFOOUT [59:0]
`
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`
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`
`FIG. 9
`
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`226
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`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 10 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 11 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 12 of 127
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`5,943,482
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`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 13 of 127
`
`5,943,482
`
`3X CLK
`
`“ ' -
`
`3X CLK
`
`FIG. 13
`
`14
`
`14
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 14 of 127
`
`5,943,482
`
`FIG.14
`
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 15 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
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`Sheet 16 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 17 of 127
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`5,943,482
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`Parameter
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`Impedance (Single-ended)
`
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`

`

`US. Patent
`
`Aug. 24, 1999
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`US. Patent
`
`Aug. 24, 1999
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`Sheet 19 of 127
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`US. Patent
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`Aug. 24, 1999
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`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 21 of 127
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`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 22 of 127
`
`5,943,482
`
`
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`
`23
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 23 of 127
`
`5,943,482
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`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 24 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 25 of 127
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`5,943,482
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`/LT STATE [T :0] = N__LT STATE [1 :0]
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`© OPEN_WINDOW & (N_CURMAST! = cumsn / CHANGING_GNT = 1
`GM [7:0] = NOGNT
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`UPDATE RR_MAST [2:0]
`LISTATE {1:01 = N_USTATE [1:0]
`
`26
`
`26
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 26 of 127
`
`5,943,482
`
`!BAL_DEL_REO / ADV_RR_MAST = 1
`N_CURMAST [2:01 = N__RR_MAST [2:01
`0PEN_WINDOW = STREAM_REO +
`MIN_GRANT + !(URMASI_REO
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`RES“
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`ANY_SLOT_REQ /
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`BAL_DEL_REQ / N_(URMAST [2:0] = BALBOA
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`ADV_RR_MAST = o
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`!ANY_SLOT_REQ /
`
`N_(URMAST [2:0] = BALBOA, ADV_RR_MAST = o
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`OPEN_WINDOW =
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`N_(URMAST [2:0] = RTRY_MAST [2:0]
`ADV_RR_MAST = 0
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`ANY_SLOT_REQ / ADV_RR__MAST = 1
`N_(URMAST [2:0] = N_RR_MAST [2:0]
`
`FIG. 23
`
`27
`
`27
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 27 of 127
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`5,943,482
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`US. Patent
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`Aug. 24, 1999
`
`Sheet 28 of 127
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`US. Patent
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`Aug. 24, 1999
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`Sheet 29 of 127
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`5,943,482
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`US. Patent
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`Aug. 24, 1999
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`Sheet 30 of 127
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`5,943,482
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`US. Patent
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`Aug. 24, 1999
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`5,943,482
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`Aug. 24, 1999
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`Aug. 24, 1999
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`US. Patent
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`Aug. 24, 1999
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`Aug. 24, 1999
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 38 of 127
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`5,943,482
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`US. Patent
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`Aug. 24, 1999
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`US. Patent
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`Aug. 24, 1999
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`Sheet 40 of 127
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`5,943,482
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 41 of 127
`
`5,943,482
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`ELSE
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`STOP_SCAN
`
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`csu_0 = "1"
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`STOP_SCAN = (BYTE_PTR_EQUAL_CNT 8. GEITING_BYIE) 0R ((BYTE [I] &
`
`BIT [0] & CHECK_SWITCH_0NLY) 0R (BYTE [4] & BIT [0]
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`FIG. 32A
`
`42
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`42
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 42 of 127
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`5,943,482
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`CLK
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`43
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`US. Patent
`
`Aug. 24, 1999
`
`Sheet 43 of 127
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`5,943,482
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`CLK
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`
`44
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`44
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 44 of 127
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`5,943,482
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`US. Patent
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`Aug. 24, 1999
`
`Sheet 45 of 127
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`5,943,482
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`RST\ .
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`ELSE
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`C
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`csmc_o = "1"
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`
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`CAYRED #-— "1"
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`
`SD_SD_BWY 0R
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`AND ANY_SLDT 1_T0 15
`
`SD_UPDATE-- "0"
`
`FIG. 33C
`
`46
`
`46
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 46 of 127
`
`5,943,482
`
`!SO_UPDATE_DONE
`
`.
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`CSOLC_0 ="1"
`
`SO_UPDATE_DONE
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`0FF_ARBZ
`
`(AYREQ#="0"
`SO_UPDATE="0"
`csou_o = "1"
`
`. CAYGNT# = "I"
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`CSOLC_0 = !(AYGNT #
`
`CAYGNT # = "0"
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`(SOLC_0 = "1"
`SO_UPDATE = "1"
`(AYREQ # = "I"
`
`W !SO_UPDATE_DDNE
`
`CSOLC_O ="1"
`SO_UPDATE = "0"
`
`FIG. 33D
`
`47
`
`47
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 47 of 127
`
`5,943,482
`
`!SO_UPDATE_DONE .
`
`SO_UPDATE_DONE
`
`SO_UPDATE = "0"
`csmc_o = "1"
`
`0FF_ARB3
`
`CAYREQ#= "0"
`SO_UPDATE = "0"
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`
`. CAYGNT# = "1"
`w CSOLC_0=lCAYGNT#
`
`CAYGNT # = "0"
`
`CSOLC_0="1"
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`SO_UPDATE = "1"
`(AYREQ # = "1"
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`0
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`
`CSOLC_0 = "1"
`
`CAYREQ # = " "
`
`FIG. 33E
`
`48
`
`48
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 48 of 127
`
`5,943,482
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`c50Lc_o = "1"
`SO_UPDATE=AORBORC
`
`!SO_UPDATE_DONE .
`
`SO—UPDATE="°"
`csou_o = lSO_UPDATE_DONE
`
`CSOLC_0 = "0"
`SO_UPDATE = "1"
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`SO_UPDATE = "0"
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`CAYGNT#="0"
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`(SOLC_0 = "1"
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`
`FIG. 33F
`
`CSOL(_0 = "1"
`SO_UPDATE = "1"
`
`FIG. 33F
`
`49
`
`49
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 49 of 127
`
`5,943,482
`
`(SOLC_0 = "I"
`CAYREQ # = "1"
`
`!T|MER_TIMEOUT
`
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`
`SO_UPDATE = “0"
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`
`0N__ARBZ
`
`SO_UPDATE = "0"
`csmc_o = "1"
`CAYREQ # = "o"
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`CAYGNT# = "1"
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`.
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`CAYGNT# = "1"
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`SO_UPDATE = "0'
`csmc_o = (mm
`
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`
`CAYGNT#="0"
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`SO_UPDATE__DONE
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`SO_UPDATE = "0"
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`0
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`SO_UPDATE = "0"
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`‘
`
`FIG. 33G
`
`50
`
`50
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 50 of 127
`
`5,943,482
`
`!SO_UPDATE_DONE
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`SO_UPDATE = "0"
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`SO_UPDATE = "0"
`(SOLC_0 ="1"
`
`csmc_o = "1"
`50_UPDATE = "1"
`
`51
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`51
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 51 of 127
`
`5,943,482
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`RST
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`BUSEN # [5:0]
`
`(LKEN # [5:0]
`RST#[5:0]
`GPOA [3:0]
`
`LEDS [11:0]
`
`924
`
`csoc_o
`
`FIG. 34
`
`52
`
`52
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 52 of 127
`
`5,943,482
`
`RST
`
`SO_UPDATE
`
`501mm
`
`
`csosc_o = "1"
`LOAD_CNTR = SO_UPDATE
`|N(_CN TR = "0"
`
`
`
`
`csosc_o = "0"
`LOAD_CNTR = "o"
`|N(_(NTR = "o"
`
`
` (SOSC_0 = "0"
`LOAD_CNTR = "0"
`
`IN(_CNTR = "0"
`
`
`
`csosc_n = "1"
`
`l0AD_(NTR = "0"
`
`mum = "0"
`
`
`
`!MAX_CNT
`
`LOAD_(NTR = b'W
`INC_CNTR = !MAX(NT
`CSOSC_0 = !MAXCNT
`
`FIG. 35A
`
`53
`
`53
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 53 of 127
`
`5,943,482
`
`_
`
`m2
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`
`
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`
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`
`54
`
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 54 of 127
`
`5,943,482
`
`azwaluzé
`
`E3252
`
`S;:SE
`
`8mm:52
`
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`8.5252
`
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`2:5
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`91:89
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`55
`
`55
`
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 55 of 127
`
`5,943,482
`
`
` NMI
`HANDLER
`
`
`
`
`CALL
`
`HANDLER
`
`
`
`
`ISEILDASTE
`OTHER
`
`
`
`
`
`
`(All
`
`PROCEDURES
`
`FIG. 37
`
`56
`
`56
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 56 of 127
`
`5,943,482
`
`BIOS DEIECIS
`ASR BOOT
`
`444
`
`ISOLATION
`
`IN PROGRESS
`
`EV SEI
`'P
`
`
`
`
`
`
`
`
`RE-ENABLE
`ALLSLOTS
`
`
`EXCEPT ONES
`
`
`ENABLED
`
`
`PRIOR TO ASK
`
`
`443
`
`450
`
`LOG FAILURE
`CLEAR EV
`
`452
`
`
`
`BUS HANG
`
`?
`
`
`PENDING
`
`446
`
`
`BUS
`HANG
`
`PENDING
`?
`
`
`
`(All
`
`
`
`ISOLATE
`
`HANDLER
`
`BIOS
`
`RESEI BUS
`
`HANG PENDING
`
`BIT
`
`@ FIG. 38
`
`57
`
`57
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 57 of 127
`
`5,943,482
`
`FIG. 39
`
`[5‘3ng
`
`
`
`RESET BUS
`PENDING BIT
`
`4IO
`
`
`SET ISOLATION IN
`PROGRESS EV,
`
`
`
`
`
`
`
`LOG ADDRESS /
`
`
`RE-ENABLE ONE SLOT,
`2mg?"
`READ/WRITE FROM IT‘S
`
`
`STATE vmons
`PCI count; SPACE
`
`
`
`
` BUS HANG
`'ENDING SET?
`
`
`4I4
`
`
`
`
`LOG FAILURE
`
`SET FAILURE
`
`
`FLAG
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`L06 INABILITY TO
`ISOLATE FAILURE
`
`RE—ENABLE
`READ / WRITE
`SLOT I
`
`
`
` BUS HANG
`PENDING SET YES—Tr
`
`
`-
`CLEAR ISOLATION IN
`PROGRESS [v
`
`428
`
`FIG. 39A
`
`58
`
`58
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 58 of 127
`
`5,943,482
`
`4I8
`
`.
`DISABLE SLOT
`
`
`
`
`UPDATE ISOLATION IN
`PROGRESS EV,
`
`PROCEED TO NEXT
`POPULATED SLOT
`“0
`
`
`
` TRIED ALL
`POPU LATED SLOTS?
`
`——-—N0
`
`4T6
`
`YES
`
`
`
`II ABLE SLO
`
`UPDATE ISOLATION
`
`
`
`
`FAILURE FLAG SET
`
`FOR ANY SLOT?
`
`
`IN PROGRESS EV
`
`DISABLE SLOTISI, LOG
`FAILURE
`
`44“
`
`
`
`YES
`
`RE-ENABLE NON-FAILED
`SLOTS
`
`
`
`
`426
`
`FIG. 39B
`
`59
`
`59
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 59 of 127
`
`5,943,482
`
`
`zigzag»:2::ngzzIéea2::
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`60
`
`60
`
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 60 of 127
`
`5,943,482
`
`!SET_HANG_PEND
`
`
`SET_HANG_PEND
`
`
`
`BR_M_ABORT = o
`WRT_EN_CAP_1
`!WRT_EN_CAP_1
`BR_T_ABORT = o
`
`RCOVR_ACIIVE = o
`
`
`
`
`
`
`FRAME_/
`BR T ABORT =1
`
`
`smjeu = l
`
`/ DEVSEL_0 = !DEVSE|._
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`BR_M_ABORT = I
`
`SERR_EN = l
`
`
`
`
`
`
`
`DEV_SE_L_WAS
`
`
` "GT 151 & !P(I_|DlE
`
`HANG_PEND
`
`
`
`457
`
`
`TIME_0UT 15
`
` 4 - BIT
`
` COUNTER
`
`
`PCLK
`
`FIG. 41
`
`61
`
`61
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 61 of 127
`
`5,943,482
`
`Emuajfims
`
`EEBEJza
`
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`62
`
`62
`
`
`
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 62 of 127
`
`5,943,482
`
`3553::
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`
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`
`63
`
`63
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`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 63 of 127
`
`5,943,482
`
`canes;
`
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`
`Balms:
`
`292:2
`
`64
`
`64
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 64 of 127
`
`5,943,482
`
`____
`
`_________________________
`
`____
`
`
`
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`
`65
`
`65
`
`
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 65 of 127
`
`5,943,482
`
`1026
`
`v
`
`SEI SECONDARY
`
`BUS NUMBER OF
`
`BRIDGE CIRCUIT 18
`EQUAL T0 ZERO
`
`
`
`BUS-“55'5"
`
`
`(URRENT_P(I__BUS;
`
`
`
`
`INITIALIZE DEV
`AND FCN
`
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`
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`SEISUBORDINATE
`33$ IINIIIDEE
`
`CURR
`
`
`
`
`
`
`
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`
`“LPG-BUS
`
`
`
`RESIORE
`
`PCI_BUS, DEV
`
`AND EEN
`
`
`
`
`P(|_BUS
`
`EQUALTO
`
`
`(ALL
`ZERO
`
`
`?
`1001
`BUS_ASSIGN
`
`
`
`
`
`
`EIND NEXT PCI - PEI BRIDGE
`
`DR SLOT 36 THAT IS
`POWERED DOWN DR
`EMPIY 0N PCI BUS;
`UPDATE DEV AND FCN
`
`
`
`INCREMENT
`
`
`(URRENLPCLBUS
`
`
`PRESERVE
`P(I_BUS, DEV
`
`AND FCN
`
`
`
`1022
`
`1020
`
`””2
`
`1014
`
`
`
`1018
`
`1016
`
`
`SEI SUBDRDINATE
`BUS NUMBER OF
`
`PCI - PCI BRIDGE
`
`SEI PRIMARY BUS
`EUUALTB MAXIMUM
`
`
`
`NUMBER 0E PCI BUSES
`NUMBER OF PEI - PCI
`
`
`BRIDGE EQUALTO
`EURRENI_BU_BUS
`
`
`
`BUSSNUNUIERRUF
`
`IN(REMENT
`CURRENT_P(I_BUS
`Efi'u'AIi‘T'gR'DGE
`
`
`
`
`w EURRENI_PU_BUS
`
`FIG. 45
`
`66
`
`66
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 66 of 127
`
`5,943,482
`
`MEM_ALLOC
`
`
`INITIALIZE
`SEARCH
`PARAMETERS
`
`I028
`
`
`
`
`
`
`FWD NEXT
`PCI FUNCTION,
`EMPTY SLOT,
`
`OR POWERED DOWN SLOT
`
`
`
`ALLOCATE DEFAULT
`MEMORY SIZE
`AND ALIGNMENT FOR
`
`EMPTY OR
`POWERED DOWN SLOT
`
`
`
`
`
`ALLOCATE MEMORY
`RESOURCES AS
`
`SPECIFIED BY THE
`
`PCI FUNCTION
`
`
`IO38
`
`FIG. 46
`
`67
`
`67
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 67 of 127
`
`5,943,482
`
`I/ O_ALI.OC
`
`
`
`
`INITIALIZE
`SEARCH
`PARAMETERS
`
`
`I 040
`
`
`FWD NEXT
`
`PCI FUNCTION,
`EMPTY SLOT, 0R
`POWERED DOWN SLOT
`
`
`
`
`
`
`
`
`ALLOCATE DEFAULT
`l/ O SIZE
`AND ALIGNMENT FOR
`
`EMPTY OR
`POWERED DOWN SLOT
`
`
`
`
`
`
`ALLOCATE I / O
`RESOURCES AS
`SPECIFIED BY THE
`PCI FUNCTION
`
`IOSD
`
`FIG. 47
`
`68
`
`68
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 68 of 127
`
`5,943,482
`
`1053
`
`N
`
`CARD_INT
`
`..
`m ‘
`f
`
`
`
`REGISTER 800
`
`
`
`TD EIND NEWLY
`INSERTED CARD
`
`
`
`
`1052
`
`1057
`
`Y
`
`W
`
`
`
`WRITETD
`SLOT ENABLE
`REGISTER 817 8.
`
`SET 50 BIT TO
`
`POWER UP SW 36
`
`
`
`
`
`
`ACCESS
`PCI BUS 0N
`CARD 807
`
`I054
`
`1055
`
`NUMBERS RESERVED
`FOR THIS SLDT
`
`
`DETERMINEPRIMARY,
`SECONDARY, AND
`
`SUBDRDINATEBUS
`
`
`
`
`DETERMINE LOCATION
`
`AND SIZE OF I / O
`AND MEMDRV SPACES
`
`
`
`RESERVED EDR THIS SLOT
`
`
`
`CONFIGURE PCI - PCI
`
`BRIDGE'S PRIMARY,
`
`SECONDARY, AND
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`
`
`NUMBERS
`
`
`
`
`
`
`
`
`
`
`
`
`
`WRITE BASE
`ADDRESS REGISTERS
`
`IN THE PCI
`CONFIGURATION SPACE
`HEADER
`
`
`INETAEIRRUPT
`PIN REGISTER
`
`WWI"
`
`INTERRUPTREGUSTER
`300 To (LEAR
`
`mm"
`
`1066
`
`LOAD DEVICE
`DRIVER FOR
`
`CARD 36
`
`1072
`
`1074
`
`m
`
`1062
`
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`
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`
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`
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`LINE REGISTER
`
`mas
`WITH APPROPRIATE
`IRD NUMBER
`I
`ENLIBRIINCSRDS
`REGISTERIS)
`
`N
`
`FIG. 48
`
`69
`
`69
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 69 of 127
`
`5,943,482
`
`BYTE
`
`3
`
`2
`
`DEVICEID
`
`REGISTER
`
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`PCI - PEI BRIDGE CONFIGURATION REGISTERS
`
`FIG. 49
`
`70
`
`
`
`
`
`70
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 70 of 127
`
`5,943,482
`
`22:55.2:
`
`2N_
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`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 71 of 127
`
`5,943,482
`
`emu
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`
`72
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`72
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`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 72 of 127
`
`5,943,482
`
`
`
`SECONDARY ADDRESS
`PRIMARY
`BITS AD [31:16]
`ADDRESS
`
`
`AD [15::1 1]
`
`
`
`
`0000 0000 0000 0001
`0000 0000 00000010
`
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`
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`00100
`
`0000 0000 0001 0000
`
`0000 0000 0010 0000
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`0000 0000 01000000
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`0000 0000 1000 0000
`
`00001
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`0001 0
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`0000 0000 0000 0100
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`01000
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`
`0001 0000 0000 0000
`
`0010 0000 0000 0000
`
`0100 0000 0000 0000
`
`1000 0000 0000 0000
`
`0000 0000 0000 0000
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`
`
`FIG. 52
`
`73
`
`73
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 73 of 127
`
`5,943,482
`
`UPSTREAM_CHIP
`"m
`CFGCMD
`
`ADDRBE
`
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`
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`
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`
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`
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`
`280
`
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`
`282
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`
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`Anonm
`
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`Ammm
`
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`
`TYP1_CFG_CYC_US
`
`PASS_TYPI _DS
`
`IN_RANGE
`SEC_BUS_MATCH
`
`
`
`288
`
`SEC_BUS_MATCH
`
`PCI_ADDR [15:11]
`= 00100
`
`286
`
`TYPI CFG_CYC_DS
`IN_R_ANGE
`SP_MAT(H
`wa_
`
`290
`
`PASS_TYPI _US
`
`FIG. 53A
`
`74
`
`74
`
`

`

`US. Patent
`
`Aug. 24, 1999
`
`Sheet 74 of 127
`
`5,943,482
`
`$83.8:
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`
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`
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`Aug. 24, 1999
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`Aug. 24, 1999
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`Aug. 24, 1999
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`Sheet 85 of 127
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`Aug. 24, 1999
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`Sheet 89 of 127
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`Aug. 24, 1999
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`Sheet 90 of 127
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`US. Patent
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`Aug. 24, 1999
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`Sheet 92 of 127
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