
Data Sheet
W6692A PCI ISDN S/T-Controller
Publication Release Date:
Mar,2000
Revision 1.0
-79 -
After power on reset, W6692A automatically reads the configuration data from serial EEPROM interface. The first word read
is Vendor ID. If Vendor ID = FFFFH, W6692A assumes EEPROM is empty and will use built-in default configuration data,
otherwise, configuration data from EEPROM is used. Please refer to Section 7.9.1 for serial EEPROM data format.
TABLE 8.7
PCI CONFIGURATION SPACE
Address\Bit
31
24
23
16
15
8
7
0
00H
Device
ID
Vendor
ID
04 H
Status (Bit 4 = 1)
Command
08 H
Class Code
Revision ID
0C H
--
Header Type
--
10 H
Base Address Register 0
14 H
Base Address Register 1
18 H - 28 H
Not implemented. Read as 0.
2C H
Subsystem ID
Subsystem Vendor ID
30 H
Not implemented. Read as 0.
34 H
Not implemented. Read as 0.
Cap_Ptr
38 H
Not implemented. Read as 0.
3C H
--
Interrupt
Pin
Interrupt
Line
40 H
PMC
Next Item Ptr
Cap_ID
44 H
Data
PMCSR_BSE
PMCSR
8.4.1 Device/Vendor ID Register
Read
Address 00 H
PCI Configuration Address: 00H
Default: 6692 1050 H
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Device
ID
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Vendor
ID
Bits 31-16 Device ID
Device ID is loaded from EEPROM after power on reset, if EEPROM is not empty.
Device ID is Winbond
′s device ID: 6692
H , if EEPROM is empty.
Bits 15-0 Vendor ID
Vendor ID is allocated by the PCI SIG to ensure uniqueness. The value is loaded from EEPROM after power-on reset , if
EEPROM is not empty.