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參數資料
型號: W6691
廠商: WINBOND ELECTRONICS CORP
英文描述: ISDN S/T Interface Transceiver
中文描述: 綜合業務數字網的S / T接口收發器
文件頁數: 83/106頁
文件大小: 428K
代理商: W6691
Preliminary W6691
Publication Release Date: Sep 2001
83 Revision 1.1
8.9.5 SFCTL Switch Functional Control Register Read/Write
Value after reset : 00H
Address 3CH
7
6
5
4
3
2
1
0
0
PGSWH
PCRLP
PXC
B2SW1
B2SW0
B1SW1
B1SW0
PGSWH PCM and GCI bus Switch
Determines the CODEC interface is to be operated in B channel.
1: PCM bus is selected to operate with CODEC.
0: GCI bus is selected to operate with CODEC.
PCRLP PCM Remote Loop Back
Setting this bit activates the PCM channel remote loopback function. The transmitted PCM data to PCM
channel are looped to received PCM channel.
PXC PCM Cross-connect
This bit determines whether or not the PCM ports are cross-connected with the B channel ports. The setting of
PXC is independent of the BSW1-0 bits.
PXC
Connection
0
PCM1
B1, PCM2
B2
1
PCM1
B2, PCM2
B1
B2SW1 / B2SW0 B2 channel Switch
These two bits determine B2 channel switch among PCM port , GCI and Layer2.
00: Select B2 channel switch between Layer2 and Layer1/GCI.
01: Select B2 channel switch between Layer1/GCI and PCM.
10: Select B2 channel switch between PCM and Layer2.
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