PI7C9X110 Pericom Semiconductor Corporation, PI7C9X110 Datasheet - Page 132

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

7.6.34 SCRATCHPAD 7 REGISTER – OFFSET 0BCh
7.6.35 RESERVED REGISTERS – OFFSET 0C0h TO 0FCh
7.6.36 LOOKUP TABLE REGISTERS – OFFSET 100h TO 1FCh
7.6.37 RESERVED REGISTERS – OFFSET 200h TO FFCh
Pericom Semiconductor
BIT
31:0
BIT
2047:0
FUNCTION
Scratchpad 7
FUNCTION
Lookup Table
TYPE
TYPE
RW
RW
Page 132 of 145
DESCRIPTION
The scratchpad is a 32-bit internal register that can be accessed from both
primary and secondary interfaces. The external devices can use the
scratchpad as a temporary storage. Primary and secondary bus devices can
communicate through the scratchpad. However, writing and reading the
scratchpad does not generate any interrupt request.
Reset to 00000000h
DESCRIPTION
The lookup table has 64 entries. Each entry has 32-bit mapped to each page
of the Upstream Memory 2 base address range
Reset to unknown
64
62
60
58
56
54
52
50
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
th
th
th
nd
th
nd
th
th
th
th
nd
th
th
th
th
nd
th
th
th
th
nd
th
th
th
th
nd
th
th
th
th
th
th
page: bit [255:224]
page: bit [191:160]
page: bit [127:96]
page: bit [63:32]
page: bit [2047:2016]
page: bit [1919:1888]
page: bit [1855:1824]
page: bit [1791:1760]
page: bit [1727:1696]
page: bit [1599:1568]
page: bit [1535:1504]
page: bit [1471:1440]
page: bit [1407:1376]
page: bit [1279:1248]
page: bit [1215:1184]
page: bit [1151:1120]
page: bit [1087:1056]
page: bit [959:928]
page: bit [895:864]
page: bit [831:800]
page: bit [767:736]
page: bit [639:608]
page: bit [575:544]
page: bit [511:480]
page: bit [447:416]
page: bit [382:352]
page: bit [319:288]
page: bit [1983:1952]
page: bit [1663:1632]
page: bit [1343:1312]
page: bit [1023:992]
page: bit [703:672]
63
61
59
57
55
53
51
49
47
45
43
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
th
th
th
rd
st
rd
st
th
th
th
rd
st
th
th
th
rd
st
th
th
th
rd
st
th
th
th
rd
st
th
th
th
th
th
page: bit [31:0]
page: bit [287:256]
page: bit [223:192]
page: bit [159:128]
page: bit [95:64]
page: bit [1951:1920]
page: bit [1631:1600]
page: bit [1311:1280]
page: bit [991:960]
page: bit [671:640]
page: bit [2015:1984]
page: bit [1887:1856]
page: bit [1823:1792]
page: bit [1759:1728]
page: bit [1695:1664]
page: bit [1567:1536]
page: bit [1503:1472]
page: bit [1439:1408]
page: bit [1375:1344]
page: bit [1247:1216]
page: bit [1183:1152]
page: bit [1119:1088]
page: bit [1055:1024]
page: bit [927:896]
page: bit [863:832]
page: bit [799:768]
page: bit [735:704]
page: bit [607:576]
page: bit [543:512]
page: bit [479:448]
page: bit [415:383]
page: bit [351:320]
May 2008, Revision 2.6
PCIe-to-PCI Reversible Bridge
PI7C9X110