PI7C9X110 Pericom Semiconductor Corporation, PI7C9X110 Datasheet - Page 32

• Manufacturer Part Number: PI7C9X110
• Description: Pcie-to-pci Reversible Bridge
• Manufacturer: Pericom Semiconductor Corporation

7.4
The following section describes the configuration space when the device is in transparent mode. The descriptions
for different register type are listed as follow:
Pericom Semiconductor
PCI CONFIGURATION REGISTERS FOR TRANSPARENT BRIDGE MODE
PCI Express / PCI
Memory Offset
033h – 030h
037h – 034h
03Bh – 038h
04Fh – 03Ch
050h
053h – 051h
057h – 054h
05Bh – 058h
05Fh – 05Ch
063h – 060h
067h – 064h
06Fh – 068h
071h – 070h
073h – 072h
075h – 074h
077h – 076h
079h – 078h
07Bh – 07Ah
07Dh – 07Ch
07Fh – 07Eh
09Fh – 080h
0A3h – 0A0h
0A7h – 0A4h
0ABh – 0A8h
0AFh – 0ACh
0B3h – 0B0h
0B7h – 0B4h
0BBh – 0B8h
0BFh – 0BCh
0FFh – 0C0h
1FFh – 100h
FFFh – 200h
Register Type
RO
ROS
RW
SM Bus Offset
233h – 230h
237h – 234h
21Bh – 218h
24Fh – 23Ch
250h
253h – 251h
257h – 254h
25Bh – 258h
25Fh – 25Ch
263h – 260h
267h – 264h
26Fh – 268h
271h – 270h
273h – 272h
275h – 274h
277h – 276h
279h – 278h
27Bh – 27Ah
27Dh – 27Ch
27Fh – 27Eh
29Fh – 280h
2A3h – 2A0h
2A7h – 2A4h
2ABh – 2A8h
2AFh – 2ACh
2B3h – 2B0h
2B7h – 2B4h
2BBh – 2B8h
2BCh – 2BFh
2FFh – 2C0h
3FFh – 300h
11FFh – 400h
Page 32 of 145
Descriptions
Read Only
Read Only and Sticky
Read/Write
Scratch pad 7
Register Name
Reserved
Upstream Memory 3
Setup
Upstream Memory 3
Upper 32-bit Setup
Reserved
Lookup Table Offset
Register
Reserved
Lookup Table Data
Register
Upstream Page
Boundary IRQ 0
Upstream Page
Boundary IRQ 1
Upstream Page
Boundary IRQ Mask 0
Upstream Page
Boundary IRQ Mask 1
Reserved
Primary Clear IRQ
Register
Secondary Clear IRQ
Register
Primary Set IRQ
Register
Secondary Set IRQ
Register
Primary Clear IRQ
Mask Register
Secondary Clear IRQ
Mask Register
Primary Set IRQ Mask
Register
Secondary Set IRQ
Mask Register
Reserved
Scratch pad 0
Scratch pad 1
Scratch pad 2
Scratch pad 3
Scratch pad 4
Scratch pad 5
Scratch pad 6
Reserved
Upstream Memory 2
Lookup Table
Reserved
Reset Value
X
0000_0000h
0000_0000h
0
XXh
0
XXXX_XXXXh
0000_0000h
0000_0000h
FFFF_FFFFh
FFFF_FFFFh
0
0000h
0000h
0000h
0000h
FFFFh
FFFFh
FFFFh
FFFFh
0
XXXX_XXXXh
XXXX_XXXXh
XXXX_XXXXh
XXXX_XXXXh
XXXX_XXXXh
XXXX_XXXXh
XXXX_XXXXh
XXXX_XXXXh
0
0
0
May 2008, Revision 2.6
PCIe-to-PCI Reversible Bridge
EEPROM
(I2C)
Access
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
PI7C9X110
SM Bus
Access
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes