MT9074AL Zarlink Semiconductor, Inc., MT9074AL Datasheet - Page 99

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

Data Sheet
Per Channel Receive Signaling (Pages 9 and 0AH) (E1)
Page 09H, addresses 10001 to 11111, and page 1AH addresses 10001 to 11111 contain the Receive Signaling
Control Words for CAS channels 2 to 16 and 18 to 32. Table 137 illustrates the mapping between the
addresses of these pages and the CAS channel numbers. Table 138 describes bit allocation within each of
these registers.
Serial per channel receive signaling status bits appear on ST-BUS stream CSTo. Table 136 describes the bit
allocation within each of the 30 active ST-BUS time slot of CSTo. Depending on the state of MSN bit (Page 1,
14H) either lower or higher signaling nibble is used.
Page 9 Address:
Equivalent PCM30
Timeslots
Page A Address:
Equivalent PCM30
Timeslots
7 - 4
3 - 0
7 - 4
3 - 0
Bit
Bit
Table 137 - Receive Channel Associated Signaling (Pages 9 and A) (E1)
Name
Name
C(n),
C(n),
A(n),
B(n),
A(n),
B(n),
A(n)
B(n)
C(n)
D(n)
D(n)
D(n)
- - -
Table 136 - Page 9, A Address Mapping to CAS Channels (E1)
0
0
0
16
Unused.
Receive Signaling Bits for Channel n. These bits are received on the PCM30
2048 kbit/sec. Link in bit positions one to four of time slot 16 in frame n (where n = 1
to 30) and are the A, B, C, D signaling bits associated with channel n.
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 (where
n = 1 to 15), and are the A, B, C, D signaling bits associated with channel n.
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 (where
n = 1 to 15), and are the A, B, C, D signaling bits associated with channel n.
Table 138 - Receive CAS Channels (CSTo) (E1)
1
1
1
17
2
2
2
18
3
3
3
19
4
4
4
20
5
5
5
21
Functional Description
Functional Description
6
6
6
22
7
7
7
23
8
8
8
24
9
9
9
25
10
10
10
26
11
11
11
27
12
12
12
28
13
13
13
29
MT9074
14
14
14
30
15
15
15
31
99