mt9072av2 Zarlink Semiconductor, mt9072av2 Datasheet - Page 68

• Manufacturer Part Number: mt9072av2
• Description: Octal T1/e1/j1 Framer
• Manufacturer: Zarlink Semiconductor

mask is located in register Y46 bit 4 (clear to enable interrupt); and the CASRI interrupt status bit in register is Y36
bit 4. Any channels marked as clear channels will not generate an interrupt due to changes in ABCD bits.
8.2.2.1
Table 25 shows the detailed bit mapping of CSTi timeslots to transmit PCM30 frames.
8.2.2.2
Table 26 shows the detailed bit mapping of CSTo 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. The number following the ABCD signaling bit letter designates the channel number (i.e., A30 designates channel 30).
Note 4. For these functions to be valid, CAS mode must be selected (CSIG=0 register address Y03).
Note 5. “1” indicates bit positions in a logic high state.
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. The number following the ABCD signaling bit letter designates the channel number (i.e., A30 designates channel 30).
Note 4. For these functions to be valid, CAS mode must be selected (CSIG=0 register address Y03), and the required ST-BUS
channels must be enabled (CASS=0 of register address Y90-YAF).
Note 5. # indicates data which is not transmitted.
Table 25 - Transmit PCM30 CAS Channels 1 to 30 from ST-BUS 2.048 Mbit/s or 8.192 Mbit/s CSTi (E1)
Frame
1 to 15
Frame
1 to 15
CAS
Table 26 - Receive PCM30 CAS Channels 1 to 30 to ST-BUS 2.048 Mbits or 8.192 Mbits CSTo (E1)
0
0
E1 Channel Associated Signaling (CAS) Transmit from ST-BUS CSTi to PCM30
E1 Channel Associated Signaling (CAS) Receive from PCM30 to ST-BUS CSTo
17m + n to
17m + n to
1m + n to
Timeslot
as above as above
1m + n to
Timeslot
as above as above
15m + n
16m + n
31m + n
15m + n
16m + n
31m + n
0 + n
0 + n
not used.
#,#,#,#,A1, B1, C1, D1 to
#,#,#,#,A15, B15, C15, D15
not used.
#,#,#,#,A16, B16, C16, D16, to
#,#,#,#,A30, B30, C30, D30
not used.
1,1,1,1,A1, B1, C1, D1, to
1,1,1,1,A15, B15, C15, D15
not used.
1,1,1,1,A16, B16, C16, D16, to
1,1,1,1,A30, B30, C30, D30
ST-BUS CSTi
ST-BUS CSTo
Data Bits (B7-B0)
Data Bits (B7-B0)
Zarlink Semiconductor Inc.
MT9072
68
Timeslot
Timeslot
16
16
16
16
CAS Multiframe Alignment Signal
A1, B1, C1, D1, A16, B16, C16, D16 to
A15, B15, C15, D15, A30, B30, C30, D30
CAS Multiframe Alignment Signal
A1, B1, C1, D1, A16, B16, C16, D16 to
A15, B15, C15, D15, A30, B30, C30, D30
PCM30 Transmit
PCM30 Receive
Data Bits (B1-B8)
Data Bits (B1-B8)
Data Sheet