MT9075BP1 Zarlink, MT9075BP1 Datasheet - Page 69

• Manufacturer Part Number: MT9075BP1
• Description: PB FREE E1 SINGLE CHIP TRANSCEIVER
• Manufacturer: Zarlink

Per Time Slot Control Words (Pages 07H and 08H)
The control functions described by Table 69 are repeated for each PCM-30 channel. Page 07H addresses 10H to
1FH correspond to time slots 0 to 15, while page 08H addresses 10H to 1FH correspond to time slots 16 to 31.
Page 07H Address:
Equivalent
Timeslots
Page 08H Address:
Equivalent
Timeslots
7 - 4
3 - 0
Bit
Bit
7
6
5
PCM
PCM
A(n+15),
B(n+15),
C(n+15),
TXMSG
D(n+15)
Name
Name
RTSL
ADI
30
30
(0)
(0)
(0)
---
0
0
0
16
Table 71 - Receive CAS Channels 17 to 31 (CSTo)
1
1
1
17
Table 72 - Mapping to CEPT Channels
Table 73 - Per Time Slot Control Word
2
2
2
18
Receive Signalling Bits for Channel n + 15. These bits are received on
the PCM 30 2048 kbit/sec. link in bit positions five to eight of time slot 16
in frame n (where n = 1 to 15), and are the A, B, C, D signalling bits
associated with channel n + 15.
Transmit Message Mode. If one, the data from the corresponding
address location of Tx message mode buffer is transmitted in the
corresponding PCM 30 time slot. If zero, the data on DSTi is transmitted
on the corresponding PCM 30 time slot. Tx message mode buffer are
accessed from pages 0FH and 10H.
Alternate Digit Inversion. If one, the corresponding transmit time slot
data on DSTi has every second bit inverted, and the corresponding PCM
30 receive time slot has every second bit inverted. If zero, this bit has no
effect on channel data.
Remote Time Slot Loopback. If one, the corresponding PCM 30
receive time slot is looped to the corresponding PCM 30 transmit time
slot. This received time slot will also be present on DSTo. If zero, the
loopback is disabled.
Unused - High impedance state.
3
3
3
19
Zarlink Semiconductor Inc.
(Page 07H and 08H)
(Page 07H and 08H)
MT9075B
4
4
4
20
69
5
5
5
21
6
6
6
22
Functional Description
Functional Description
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
Data Sheet
14
14
14
30
15
15
15
31