W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 70

• Manufacturer Part Number: W6691CD
• Description: ISDN S/T Interface Transceiver
• Manufacturer: WINBOND [Winbond]

8.8 GCI Bus Register Description
8.8.1 Channel Selection Register
Value after reset: 00H
CSEL2, CSEL1 and CSEL0 define W6691 locating in GCI channel number operated in LT-S/ LT-T mode.
8.8.2 Command/Indication Receive Register CIR Read Address 1AH
Value after reset: 0FH
BAS Bus Access Status Indicate the state of the TIC –bus:
1: W6691 itself occupies the D and C/I channel.
0: Another device occupies the D channel and C/I channel.
CODR3-0 Layer 1 Indication Code
Value of the received layer 1 indication code. Note these bits have a buffer size of two. If TE mode is selected,
CODR3-0 bits are CI0 bits in GCI bus channel.
7
0
7
0
6
0
6
0
5
0
5
0
4
0
BAS
4
3
0
CSEL
CSEL2
CODR3
2
3
70
CSEL1 CSEL0
1
CODR2
Read/Write
2
0
Preliminary W6691
CODR1
Publication Release Date: Sep 2001
1
Address 18H
CODR0
0
Revision 1.1