参数资料
型号: W6694ACD
厂商: WINBOND ELECTRONICS CORP
元件分类: 数字传输电路
英文描述: DATACOM, ISDN CONTROLLER, PQFP48
封装: 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48
文件页数: 25/42页
文件大小: 567K
代理商: W6694ACD
Preliminary Data Sheet
W6694A USB-ISDN S/T-Controller
-31-
Publication Release Date: May, 2001
Revision 1.03
8.4.3 PIO Output Register 2
PO2
Read/Write
Address 0Ch
Value after reset: FFh
7
6
5
4
3
2
1
0
OM7_1
OM7_0
OM6_1
OM6_0
OM5_1
OM5_0
OM4_1
OM4_0
OMn_1-0
Output Mode of IO Pin n (n=7..4).
8.4.4 PIO Data Register
PDATA
Read
Address 0Dh
Value after reset: 00h
7
6
5
4
3
2
1
0
D7
D6
D5
D4
D3
D2
D1
D0
D7-0
Read Data of IO Pins 7-0
The corresponding bits are the present values of input pins 7-0 (LOW=0, HIGH=1).
8.5 B Channel Switch Registers
8.5.1 Layer1 B1 Receiver Select Register
L1B1RS
Read/Write
Address 0Eh
Value after reset: 04h
7
6
5
4
3
2
1
0
RS2
RS1
RS0
RS2-0
Receiver Select
These bits select the source where layer 1 B1 channel will receive data from. Possible values are:
000 (0): receive from PCM1
001 (1): receive from PCM2
010 (2): receive from Layer1 B1
100 (4): receive from USB B1
8.5.2 Layer1 B2 Receiver Select Register
L1B2RS
Read/Write
Address 0Fh
Value after reset: 05h
7
6
5
4
3
2
1
0
RS2
RS1
RS0
RS2-0
Receiver Select
These bits select the source where layer 1 B2 channel will receive data from. Possible values are:
000 (0): receive from PCM1
001 (1): receive from PCM2
011 (3): receive from Layer1 B2
101 (5): receive from USB B2
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