W6694 Datasheet, PDF (21/33 Pages) Winbond – USB Bus ISDN S/T-Controller

Preliminary W6694
RLP Remote Loopback
Setting this bit activates the remote loopback function. The received 2B channels from the S
interface are looped to the transmitted 2B channels of S/T interface. The D channel is not
looped in this loopback function.
This bit remains set, until cleared by software reset (SRST).
8.2.3 Command Register 2
Value after reset: 00h
CMDR2 Write
Address 02h
Bits in this register act similar to that of CMDR1 register, except that the effect is on B1 or B2 channel
XFIFO/RFIFO, instead of on D channel XFIFO/RFIFO.
7
6
5
4
3
2
B1XRST B1RRST B1XEN B1REN B2XRST B2RRST
1
B2XEN
0
B2REN
B1XRST
B1RRST
B1XEN
B1REN
B2XRST
B2RRST
B2XEN
B2REN
B1 Channel Transmitter Reset
B1 Channel Receiver Reset
B1 Channel Transmit FIFO Enable
B1 Channel Receive FIFO Enable
B2 Channel Transmitter Reset
B2 Channel Receiver Reset
B2 Channel Transmit FIFO Enable
B2 Channel Receive FIFO Enable
8.2.4 Control Register
Value after reset: 00H
7
6
5
0
0
0
CTL
Read/Write
4
3
2
1
0
0
0
0
OPS1 OPS0
OPS1-0 Output Phase Delay Compensation Select1-0
These two bits select the output phase delay compensation.
Address 03h
OPS1
0
0
1
1
OPS0
0
1
0
1
Effect
No output phase delay compensation
Output phase delay compensation 260 nS
Output phase delay compensation 520 nS
Output phase delay compensation 1040 nS
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Publication Release Date: October 2000
Revision A1