PI7C9X110 Datasheet, PDF (62/145 Pages) Pericom Semiconductor Corporation – PCI Express-to-PCI Reversible Bridge

PI7C9X110
PCIe-to-PCI Reversible Bridge
BIT
19:16
25:20
26
27
28
31:29
FUNCTION
Link Speed
Negotiated Link Width
Link Train Error
Link Training
Slot Clock Configuration
Reserved
TYPE
RO
RO
RO
RO
RO
RO
DESCRIPTION
This field indicates the negotiated speed of the Express link
001: 2.5Gb/s link
Reset to 1h
000000: reserved
000001: x1
000010: x2
000100: x4
001000: x8
001100: x12
010000: x16
100000: x32
Reset to 000001
Reset to 0
Reset to 0
Reset to 1
Reset to 0
7.4.76 SLOT CAPABILITY REGISTER – OFFSET C4h
BIT
0
1
2
3
4
5
6
14:7
16:15
18:17
31:19
FUNCTION
Attention Button Present
Power Controller Present
MRL Sensor Present
Attention Indicator Present
Power Indicator Present
Hot Plug Surprise
Hot Plug Capable
Slot Power Limit Value
Slot Power Limit Scale
Reserved
Physical Slot Number
TYPE
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
DESCRIPTION
0: If Hot Plug is disabled
1: If Hot Plug is enabled at reverse bridge
Reset to 0 when hot-plug is disabled or 1 when hot-plug is enabled through
strapping.
Reset to 0
0: If Hot Plug is disabled
1: If Hot Plug is enabled at reverse bridge
Reset to 0 when hot-plug is disabled or 1 when hot-plug is enabled through
strapping.
0: If Hot Plug is disabled
1: If Hot Plug is enabled at reverse bridge
Reset to 0 when hot-plug is disabled or 1 when hot-plug is enabled through
strapping.
0: If Hot Plug is disabled
1: If Hot Plug is enabled at reverse bridge
Reset to 0 when hot-plug is disabled or 1 when hot-plug is enabled through
strapping.
Reset to 0
0: If Hot Plug is disabled
1: If Hot Plug is enabled at reverse bridge
Reset to 0 when hot-plug is disabled or 1 when hot-plug is enabled through
strapping.
Reset to 00h
Reset to 00
Reset to 00
Reset to 0
7.4.77 SLOT CONTROL REGISTER – OFFSET C8h
BIT
FUNCTION
TYPE DESCRIPTION
0
Attention Button Present
RW Reset to 0
Enable
1
Power Fault Detected Enable RW Reset to 0
Pericom Semiconductor
Page 62 of 145
November 2007, Revision 2.4