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參數資料
型號: W6694
廠商: WINBOND ELECTRONICS CORP
英文描述: PCI Bus ISDN S/T Interface Controller(PCI總線的ISDN S/T接口控制器)
中文描述: PCI總線的綜合業務數字網的S / T接口控制器(綜合業務數字網的PCI總線的S / T的接口控制器)
文件頁數: 43/98頁
文件大小: 1338K
代理商: W6694
Data Sheet
W6692A PCI ISDN S/T-Controller
Publication Release Date:
Mar,2000
Revision 1.0
-43 -
the internal ISDN device and external peripheral device(s). Memory mode and/or IO mode can be used for W6692A's register
access.
After power on reset, W6692A starts to read configuration data from serial EEPROM. The first word read is Vendor ID, if it
equals FFFFH, a EEPROM empty condition is assumed and chip's internal default configuration data is used, otherwise, the
configuration data stored in serial EEPROM is used. The default configuration data is as follows:
Vendor ID
: 1050H (Winbond's ID)
Device ID
: 6692H
Class Code
: 02 04 00H
Revision ID
: 00H
Interface Code
: 00H
Subclass Code
: 04H
Base Class Code
: 02H
Subsystem Vendor ID
: FFFFH
Subsystem ID
: FFFFH
Memory Base Address Register
: Enabled and Implemented at 10H
IO Base Address Register
: Enabled and Implemented at 14H
Power Management Capability (PMC)
: FE62H
A 9346/93C46 type serial EEPROM is used for configuration data storage. The EEPORM's data layout is as follows :
Address/Byte
1
0
H
Vendor ID
2
H
Device ID
4
H
Interface Code
Revision ID
6
H
Base Class Code
Subclass Code
8
H
Subsystem Vendor ID
A
H
Subsystem ID
C
H
Address Register Control
E
H
PMC
0
FIG.7.9 SERIAL EEPROM DATA LAYOUT
Word 6 (Bytes 12,13) is for Address Register Control, its format is :
15
14
13
12
MEN
IEN
PRE
The Address Register Control determines the PCI address register's implementation. Bit 13 is the prefetchable bit in Memory
Base Address register.
MEN
IEN
PCI Configuration Space
Location 10H
Location 14H
0
not used
PCI Configuration Space
Bit 13
used
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