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21555 Non-Transparent PCI-to-PCI Bridge User Manual 125
List of Registers
C7:C4
Downstream I/O or Memory 1
and Upstream I/O or Memory 0
Setup Registers, page 138
00000000 Y Secondary Y
CB:C8
Downstream Memory 0, 2, 3, and
Upstream Memory 1 Setup
Registers, page 139
00000000 Y Secondary Y
CD:CC
Chip Control 0 Register, page
156
0y00
y = 0 or 4
(Strapped)
Y
[15:11, 9:0]Y
[10]
secondary
Y
CF:CE
Chip Control 1 Register, page
160
0000 Y Y Y
D1:D0 Chip Status Register, page 162 0000 — W1TC Y
D3:D2
Arbiter Control Register, page
183
0200 Y Y Y
D4
Primary SERR# Disable
Register, page 184
00 Y Y Y
D5
Secondary SERR# Disable
Register, page 184
00 Y Y Y
D7:D6
Mode Setting Configuration
Register, page 179
Determined by Parallel ROM
Strapping Options
0000 — NY
DB:D8 Reset Control Register, page 188 0000 — Primary Y
DC Power Management ECP ID and
Next Pointer Register, page 185
Power Management Next Ptr
01 — NY
DD E4 — NN
DF:DE
Power Management Capabilities
Register, page 186
0001 Y Secondary Y
E1:E0
Power Management Control and
Status Register, page 187
0000 Y Y Y
E2
PMCSR Bridge Support
Extensions, page 187
00 — NY
E3
Power Management Data
Register, page 188
00 Y N Y
E4 Vital Product Data (VPD) ECP ID
and Next Pointer Register, page
192
VPD Cap ID
VPD Next Ptr
04 — NY
E5 EC — NN
E7:E6
Vital Product Data (VPD)
Address Register, page 193
VPD Address
Indeterminate — YY
EB:E8
VPD Data Register, page 193
VPD Data
Indeterminate — YY
Table 32. Configuration Space Address Register (Sheet 4 of 5)
Byte
Offset
(Hex)
Register Name
Reset Value
(Hex)
Preload
Write
Access
Read
Access