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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： | 82/98頁 |
| 文件大小： | 1338K |
| 代理商： | W6694 |
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Data Sheet
W6692A PCI ISDN S/T-Controller
Publication Release Date:
Mar,2000
Revision 1.0
-82 -
This value is loaded from EEPROM after power-on reset, if EEPROM is not empty.
The default value is 020400
H
to specify that the W6692A is an ISDN network communication device
,
if EEPROM is empty.
Bits 7-0 Revision ID Read_only
This value is assigned by the ISDN system manufacturer and identifies the revision number of the system.
This value is loaded from EEPROM after power on reset, if EEPROM is not empty.
The default value is 00
H,
if EEPROM is empty.
8.4.4 Header Type/Latency Timer Register
PCI Configuration Address: 0C
H
Default: 0000 0000
H
Read
Address 0C
H
31
30
29
28
27
26
25
24
23
22
21
20
Header Type
19
18
17
16
BIST
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Latency Timer
Cache Line Size
Bits 31-24 BIST Built-in Self Test Read_only
This register is always read as 0. It means that W6692A does not support BIST function.
Bits 23-16 Header Type Read_only
The value of this register is 00
H
. This means a signle function device, with header type 00
H
.
Bits 15-8 Latency Timer Read_only
This register is not implemented and is read as 0.
Bits 7-0 Cache Line Size Read_only
This register is not implemented and is read as 0.
8.4.5 Base Address Register 0
Depending on EEPROM status and MEN, IEN bits in EEPROM, there are different implementations:
MEN
IEN
Location 10H
1
1
Memory Base Address Reg.
1
0
Memory Base Address Reg.
0
1
IO Base Address Reg.
0
0
Not Implemented
EEPROM empty
Memory Base Address Reg.
If EEPROM is empty, the power on reset value at 10
H
=0000 0000
H
, and the power on reset value at 14
H
=0000 0001
H
Memory Base Adress Register:
Read/Write
Address 10
H
Location 14H
IO Base Address Reg.
Not Implemented
Not Implemented
Not Implemented
IO Base Address Reg.
PRE used
Yes
Yes
No
No
PRE=0
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