W66910 Datasheet, PDF (55/81 Pages) Winbond – TE Mode ISDN S/T-Controller with Microprocessor Interface

Data Sheet
W66910 PCI ISDN S/T-Controller
7
6
5
4
3
2
1
0
CODX3 CODX2 CODX1 CODX0
CODX3-0Layer 1 Command Code
Value of the command code transmitted to layer 1.
A read to this register returns the previous written value.
Note: If S/T layer 1 function is disabled and GCI slave mode is enabled (GMODE = 1 in GCR register), CIX register is used to
issue layer 1 command code to U transceiver. In this case, the supported command code is:
Command
Symbol Code
Activate request command AR
1000
Descriptions
Activate request command
8.1.25 S/Q Channel Receive Register SQR
Read
Address 18H
Value after reset: XXH
7
6
5
4
3
2
1
0
XIND1 XIND0 MSYN SCIE
S1
S2
S3
S4
XIND1 XINTIN1 Data
This bit reflects the current level of XINTIN1 pin.
XIND0 XINTIN0 Data
This bit reflects the current level of XINTIN0 pin.
MSYN Multiframe Synchronization
When this bit is "1", a multiframe synchronization is achived, i.e the S/T receiver has synchronized to the received F_A and M bit
patterns.
SCIES Channel Change Interrupt Enable
The SCIE bit written in the SQX register is read from this bit.
S1-4 Received S Bits
These are the S bits received in NT to TE direction in frames 1, 6, 11 and 16. S1 is in frame 1, S2 is in frame 6 etc. This four bits
are double buffered.
8.1.26 S/Q Channel Transmit Register SQX
Value after reset: 0FH
Read/Write
Address 19H
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Publication Release Date: Feb,2001
Revision 1.0