mt9072av2 Zarlink Semiconductor, mt9072av2 Datasheet - Page 70
mt9072av2
Manufacturer Part Number
mt9072av2
Description
Octal T1/e1/j1 Framer
Manufacturer
Zarlink Semiconductor
Datasheet
1.MT9072AV2.pdf
(275 pages)
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8.2.4
The CSIG control bit (register address Y03) must be set to one for Common Channel signaling (CCS) operation.
CCS on the receive PCM30 link (bit positions one to eight of timeslots 15, 16 and/or 31 of every frame) is sourced
to the ST-BUS DSTo stream and may also be sourced to the ST-BUS CSTo stream. If the TS15E, TS16E & TS31E
control bits (register address Y06) are zero, the receive data will be sourced to the ST-BUS DSTo stream only,
timeslots 15, 16 and 31. If these bits are one, then the signaling data will be sourced to both the DSTo stream and
the ST-BUS CSTo stream. Note that any combination of the TS15E, TS16E & TS31E control bits (register address
Y06) may be enabled. The CSTo destination timeslots for the receive PCM30 timeslots 15, 16 and 31, are
determined respectively by the 15C4-15C0, 16C4-31C0 and 31C4-31C0 (register address Y07) programming bits.
Table 29 shows the detailed bit mapping of CSTo timeslots from receive PCM30 frames. Table 30 shows the
detailed bit mapping of DSTo timeslots from receive PCM30 frames.
Note 1. For 2.048 Mbit/s operation, m=1 and n=0.
Note 2. For 8.192 Mbit/s operation, m=4 and n =0,1,2,3 where n corresponds to the framer number (i.e., n=0=framer 0... n=3= framer
3)
Note 3. For these functions to be valid, CCS mode must be selected (CSIG=1 register address Y03) and CSTo ST-BUS mode must
be selected (TS15E=1, TS16E=1 & TS31E=1 register address Y06) and the preferred destination CSTo timeslot should be selected
(15C4-0, 16C4-0 & 31C4-0 register address Y07).
Note 1. For 2.048 Mbit/s operation, m=1 and n=0.
Note 2. For 8.192 Mbit/s operation, m=4 and n =0,1,2,3 where n corresponds to the framer number (i.e., n=0=framer 0... n=3= framer
3)
Note 3. For these functions to be valid, CCS mode must be selected (CSIG=1 register address Y03).
CRC-4
Frame
CRC-4
Frame
all
all
all
all
all
all
E1 Common Channel Signaling (CCS) Receive from PCM30 to CSTo and DSTo
Any one of 32
n + m(0 to 31)
Any one of 32
n + m(0 to 31)
Any one of 32
n + m(0 to 31)
Table 29 - Receive PCM30 CCS to ST-BUS 2.048 Mbit/s or 8.192 Mbit/s CSTo (E1)
Table 30 - Receive PCM30 CCS to ST-BUS 2.048 Mbit/s or 8.192 Mbit/s DSTo (E1)
Timeslot
n + m(15) P1, P2, P3, P4, P5, P6, P7, P8
n + m(16) P1, P2, P3, P4, P5, P6, P7, P8
n + m(31) P1, P2, P3, P4, P5, P6, P7, P8
Timeslot
ST-BUS DSTo
ST-BUS CSTo
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
Data Bits (B7-B0)
Data Bits (B7-B0)
Zarlink Semiconductor Inc.
MT9072
70
Timeslot
Timeslot
15
16
31
15
16
31
CRC-4
Frame
CRC-4
Frame
all
all
all
all
all
all
PCM30 Receive
PCM30 Receive
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
P1, P2, P3, P4, P5, P6, P7, P8
Data Bits (B1-B8)
Data Bits (B1-B8)
Data Sheet
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