MT9074AL Zarlink Semiconductor, Inc., MT9074AL Datasheet - Page 96

• Manufacturer Part Number: MT9074AL
• Description: T1/E1/J1 Single Chip Transceiver
• Manufacturer: Zarlink Semiconductor, Inc.

MT9074
Per Channel Transmit Signaling (Pages 5 and 6) (E1)
Page 05H, addresses 10000 to 11111, and page 06H addresses 10000 to 10111 contain the Transmit Signaling
Control Words for Channel Associated Signaling (CAS) channels 2 to 16 and 18 to 32 respectively. Table 132
illustrates the mapping between the addresses of these pages and the CAS channel numbers. Control of these
bits for any one channel is through the processor or controller port when the Per Time Slot Control bit RPSIG
bit is high. Table 133 describes bit allocation within each of these registers.
Serial per channel transmit signaling control through CSTI is selected when RPSIG bit is zero. Table 132
describes the function of CSTI time slots 1 to 30. if MSN bit is high, CSTI time slots 17 to 31 are selected. if
MSN bit is low, CSTI time slots 1 to 15 are selected.
96
Page 5 Address:
Equivalent CAS
channel
Page 6 Address:
Equivalent CAS
channel
7 - 4
3 - 0
Bit
Table 131 - Page 5, 6 Address Mapping to CAS Signaling Channels (E1)
Name
C(n)
D(n)
A(n)
B(n)
Table 132 - Transmit Channel Associated Signaling (E1) (Pages 5,6)
- - -
0
1
0
17
Unused.
Transmit Signaling Bits for Channel n. These bits are transmitted on the PCM30
2048 kbit/sec. Link in bit positions one to four of time slot 16 in frame n (when
n = 1 to 15), and are the A, B, C, D signaling bits associated with channel n.
1
2
1
18
2
2
3
19
3
4
3
20
4
5
4
21
5
6
5
22
Functional Description
6
7
6
23
7
8
7
24
8
9
8
25
9
10
9
26
10
11
10
27
11
12
11
28
12
13
12
29
Data Sheet
30
13
14
13
14
15
14
31
15
16
15
32