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W66910 Datasheet, PDF (29/81 Pages) Winbond – TE Mode ISDN S/T-Controller with Microprocessor Interface
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Data Sheet
W66910 PCI ISDN S/T-Controller
- The multiframe synchronization can be disabled by setting MFD bit in the D_MODE register.
- According to I.430 Recommendation, the S/Q channel can be used as operation and maintenance signalling
channel. At transmitter, a S/Q code for a message shall be repeated at least six times or as many as necessary to
obtain the desired response. At receiver, a message shall be considered received only when the proper codes is
received three consecutive times.
TABLE 7.6 Multiframe structure in S/T interface
Frame Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
etc.
NT-to-TE
FA-bit position
ONE
ZERO
ZERO
ZERO
ZERO
ONE
ZERO
ZERO
ZERO
ZERO
ONE
ZERO
ZERO
ZERO
ZERO
ONE
ZERO
ZERO
ZERO
ZERO
ONE
ZERO
NT-to-TE
M bit
ONE
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ZERO
ONE
ZERO
NT-to-TE
S bit
S1
ZERO
ZERO
ZERO
ZERO
S2
ZERO
ZERO
ZERO
ZERO
S3
ZERO
ZERO
ZERO
ZERO
S4
ZERO
ZERO
ZERO
ZERO
S1
ZERO
TE-to-NT
FA-bit position
Q1
ZERO
ZERO
ZERO
ZERO
Q2
ZERO
ZERO
ZERO
ZERO
Q3
ZERO
ZERO
ZERO
ZERO
Q4
ZERO
ZERO
ZERO
ZERO
Q1
ZERO
7.2.7 Test Functions
The W66910 provides loop and test functions as follows:
-29 -
Publication Release Date: Feb,2001
Revision 1.0
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