21150
15.1.27 Subsystem Vendor ID Register—Offset 34h........................................118
15.1.28 ECP Pointer Register—Offset 34h.......................................................118
15.1.29 Subsystem ID Register—Offset 36h ....................................................119
15.1.30 Interrupt Pin Register—Offset 3Dh.......................................................119
15.1.31 Bridge Control Register—Offset 3Eh ...................................................119
15.1.32 Capability ID Register—Offset DCh .....................................................122
15.1.33 Next Item Ptr Register—Offset DDh.....................................................123
15.1.34 Power Management Capabilities Register—Offset DEh......................123
15.1.35 Power Management Control and Status Register—Offset E0h ...........124
15.1.36 PPB Support Extensions Registers—Offset E2h .................................124
15.1.37 Data Register—Offset E3h...................................................................125
Device-Specific Configuration Registers...........................................................125
15.2.1 Chip Control Register—Offset 40h.......................................................125
15.2.2 Diagnostic Control Register—Offset 41h .............................................126
15.2.3 Arbiter Control Register—Offset 42h....................................................127
15.2.4 p_serr_l Event Disable Register—Offset 64h.......................................128
15.2.5 gpio Output Data Register—Offset 65h ...............................................129
15.2.6 gpio Output Enable Control Register—Offset 66h ...............................130
15.2.7 gpio Input Data Register—Offset 67h ..................................................130
15.2.8 Secondary Clock Control Register—Offset 68h...................................130
15.2.9 p_serr_l Status Register—Offset 6Ah ..................................................132
Configuration Register Values After Reset .......................................................133
15.2
15.3
JTAG Test Port ..............................................................................................................135
16.0
16.1
16.2
16.3
16.4
16.5
16.6
Overview ...........................................................................................................135
JTAG Signal Pins..............................................................................................135
Test Access Port Controller ..............................................................................135
Instruction Register ...........................................................................................136
Bypass Register................................................................................................136
Boundary-Scan Register ...................................................................................136
16.6.1 Boundary-Scan Register Cells.............................................................137
16.6.2 21150 Boundary-Scan Order ...............................................................137
Initialization .......................................................................................................141
16.7
17.0
Electrical Specifications .................................................................................................143
17.1
17.2
17.3
17.4
PCI Electrical Specification Conformance.........................................................143
Absolute Maximum Ratings ..............................................................................143
DC Specifications..............................................................................................144
AC Timing Specifications ..................................................................................144
17.4.1 Clock Timing Specifications .................................................................145
17.4.2 PCI Signal Timing Specifications .........................................................146
17.4.3 Reset Timing Specifications.................................................................148
17.4.4 gpio Timing Specifications ...................................................................149
17.4.5 JTAG Timing Specifications .................................................................150
18.0
Mechanical Specifications..............................................................................................153
vi
Preliminary Datasheet