W6691CD WINBOND [Winbond], W6691CD Datasheet - Page 58

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

Offset
Offset
8.6 Miscellaneous Register Memory Map
Table 8.6 Miscellaneous Register Memory Map
8.7 D channel HDLC Controller Register Description
8.7.1 D_ch receive FIFO
The D_RFIFO has a length of 64 bytes.
After a D_RMR interrupt, exactly 32 bytes are available.
After a D_RME interrupt, the number of bytes available equals RBC4-0 bits in the D_RBCL register.
3C
3D
3A
3B
3E
3F
32
33
34
35
36
37
38
39
R/W
R/W
R_clr GCI_EXIR
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Name
CI1X
GCI_EXIM
Name
TIMR1
TIMR2
PCR
PIODR
SFCTL
ACTL1
ACTL2
ACTL3
T1MD
TMD
7
0
0
1
7
0
0
0
0
0
0
TIDLE
PGSWH PCRLP
ACTL1
INTOL
CNT6
D_RFIFO
0
6
0
0
1
6
0
0
CI1X_6
CNT5
TCN5
SRST
LC
5
0
1
5
0
0
0
58
Read Address 00H
CI1X_5
MO1C
MO1C
CNT4
TCN4
PXC
4
4
0
0
0
0
0
Reserved
Reserved
Reserved
B2SW1
CI1X_4
MO0C
CNT3
TCN3
OE3
IO3
SPU
3
0
3
0
0
Preliminary W6691
Publication Release Date: Sep 2001
CI1X_3 CI1X_2
B2SW0 B1SW1
CNT2
TCN2
OE2
IO2
PD
2
0
0
2
0
0
OPS1
CNT1
TCN1
OE1
IO1
1
0
0
1
0
0
Revision 1.1
CI1X_1
CI1
CI1
CNT0
TCN0
OE0
IO0
B1SW0
OPS0
0
0
0
0