MT9074AL Zarlink Semiconductor, Inc., MT9074AL Datasheet - Page 67
MT9074AL
Manufacturer Part Number
MT9074AL
Description
T1/E1/J1 Single Chip Transceiver
Manufacturer
Zarlink Semiconductor, Inc.
Datasheet
1.MT9074AL.pdf
(124 pages)
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NOTE: This table illustrates bit mapping on the serial input stream - it does not refer to an internal register.
Per Time Slot Control Words)(Pages 7 and 8) (T1)
The control functions described by Table 75 are repeated for each DS1 time slot. Page 7 addresses 10000 to
11111 correspond to DS1 time slot 1 to 16, while page 8 addresses 10000 to 10111 correspond to time slots 17
to 24. Table 74 illustrates the mapping between the addresses of these pages and the DS1 channel numbers.
67
Page 7 Address:
Equivalent DS1
channel
Page 8 Address:
Equivalent DS1
channel
7 - 4
3 - 0
Bit
Name
C(n),
C(n),
A(n),
A(n),
B(n),
B(n)
D(n)
D(n)
Transmit Signaling Bits for Channel n. When control bit MSN = 1 and RPSIG = 0 this nibble
is used. For ESF links these 4 bits are transmitted on the associated DS1 channel (see table 8)
in frames 6, 12, 18 and 24. For D4 links bits A are transmit on the associated DS1 channel of
frame 6 and bits B are transmit on the associated DS1 channel of frame 12. For D4 links bits C
and D are unused.
Transmit Signaling Bits for Channel n. When control bit MSN = 0 and RPSIG = 0 this nibble
is used. For ESF links these 4 bits are transmitted on the associated DS1 channel (see table 8)
in frames 6, 12, 18 and 24. For D4 links bits A are transmit on the associated Ds1 channel of
frame 6 and bits B are transmit on the associated DS1 channel of frame 12. For D4 links bits C
and D are unused.
Table 74 - Pages 7 and 8 Address Mapping to DS1 Channels
0
1
0
17
Table 73 - T1 / Transmit Channels Usage - CSTi
1
2
1
18
2
2
3
19
3
4
3
20
4
5
4
21
Functional Description
5
6
5
22
6
7
6
23
7
8
7
24
8
9
8
x
9
10
9
x
10
11
10
x
11
12
11
x
12
13
12
x
Data Sheet
13
14
13
x
14
15
14
x
15
16
15
x
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