
PI7C21P100
2-PORT PCI-X BRIDGE
ADVANCE INFORMATION
Page 7 of 77
June 10, 2005 Revision 1.06
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IEEE 1149.1 COMPATIBLE JTAG CONTROLLER.................................................................. 65
9.1
INSTRUCTION
REGISTER..................................................................................................... 65
9.2
BYPASS
REGISTER................................................................................................................ 65
9.3
DEVICE
ID
REGISTER ........................................................................................................... 65
9.4
BOUNDARY
SCAN
REGISTER............................................................................................. 66
9.5
JTAG
BOUNDARY
REGISTER
ORDER................................................................................ 66
10
ELECTRICAL INFORMATION.................................................................................................... 74
10.1
MAXIMUM
RATINGS............................................................................................................ 74
10.2
DC
SPECIFICATIONS............................................................................................................. 74
10.3
AC
SPECIFICATIONS............................................................................................................. 74
10.4
POWER
CONSUMPTION ....................................................................................................... 75
11
MECHANICAL INFORMATION.................................................................................................. 76
12
ORDERING INFORMATION........................................................................................................ 76
MISCELLANEOUS CONTROL REGISTER – OFFSET 44h........................................... 52
EXTENDED CHIP CONTROL REGISTER 1 – OFFSET 48h......................................... 52
EXTENDED CHIP CONTROL REGISTER 2 – OFFSET 48h......................................... 53
ARBITER MODE REGISTER – OFFSET 50h................................................................. 53
ARBITER ENABLE REGISTER – OFFSET 54h.............................................................. 54
ARBITER PRIORITY REGISTER – OFFSET 58h........................................................... 54
SERR# DISABLE REGISTER – OFFSET 5Ch ................................................................ 55
PRIMARY RETRY COUNTER REGISTER – OFFSET 60h............................................. 56
SECONDARY RETRY COUNTER REGISTER – OFFSET 64h....................................... 56
DISCARD TIMER CONTROL REGISTER – OFFSET 68h............................................. 57
RETRY AND TIMER STATUS REGISTER – OFFSET 6Ch ............................................ 57
OPAQUE MEMORY ENABLE REGISTER – OFFSET 70h............................................ 57
OPAQUE MEMORY BASE REGISTER – OFFSET 74h................................................. 58
OPAQUE MEMORY LIMIT REGISTER – OFFSET 74h................................................ 58
OPAQUE MEMORY BASE UPPER 32-BIT REGISTER – OFFSET 78h ....................... 58
OPAQUE MEMORY LIMIT UPPER 32-BIT REGISTER – OFFSET 7Ch...................... 58
PCI-X CAPABILITY ID REGISTER – OFFSET 80h....................................................... 58
NEXT CAPABILITY POINTER REGISTER – OFFSET 80h ........................................... 59
PCI-X SECONDARY STATUS REGISTER – OFFSET 80h............................................. 59
PCI-X BRIDGE PRIMARY STATUS REGISTER – OFFSET 84h................................... 59
SECONDARY BUS UPSTREAM SPLIT TRANSACTION REGISTER – OFFSET 88h... 61
PRIMARY BUS DOWNSTREAM SPLIT TRANSACTION REGISTER – OFFSET 8Ch.. 61
POWER MANAGEMENT ID REGISTER – OFFSET 90h............................................... 61
NEXT CAPABILITIES POINTER REGISTER – OFFSET 90h........................................ 62
POWER MANAGEMENT CAPABILITIES REGISTER – OFFSET 90h.......................... 62
POWER MANAGEMENT CONTROL AND STATUS REGISTER – OFFSET 94h ......... 62
PCI-TO-PCI BRIDGE SUPPORT EXTENSION REGISTER – OFFSET 94h................. 63
SECONDARY BUS PRIVATE DEVICE MASK REGISTER – OFFSET B0h................... 63
MISCELLANEOUS CONTROL REGISTER 2 – OFFSET B8h ....................................... 64
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