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STANDARD PRODUCT
PMC-Sierra, Inc.
PM6344 EQUAD
PMC-951013
ISSUE 5
QUADRUPLE E1 FRAMER
181
range between 4 bit/s and 20 kbit/s. RDLSIG[x] is generated on the falling edge
of RDLCLK[x]. For the diagram shown above, the SRSMFP and SRCMFP
register bits are set to logic 0. The timing with respect to RCLKO[x] shown here
is valid only if the RCLKOSEL bit is set to logic 0.
Figure 11
- TS16 Transmit Datalink Interface
TDLCLK[x]
TDLSIG[x]
TDP/TDD[x]
TDN[x]
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
1
2
3
4
5
6
7
0
8
9
10 11 12 13 14 15 16
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
14
Time Slots
BTPCM[x]
15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
1
2
3
4
5
6
7
0
8
9
10 11 12 13 14 15 16 17
CCS data collected over 32 timeslots
and inserted into TS16
When Common Channel Signaling (CCS) data sourced from TDLSIG[x] is
selected (DLEN=1, SIGEN=0 and TXDMASIG=0), TDLCLK[x] is active,
producing one cycle every 4 time slots, aligned to the incoming BTPCM[x]. The
data on TDLSIG[x] is sampled on the rising edge of TDLCLK[x] and put directly
into TS16 on the outgoing data stream.
Figure 12
- TS0 Transmit Datalink Interface
BTCLK[x]
BTPCM[x]
Timeslot 31
1
7 8
7 8
6 7
1 2 3 4 5
8
1 2 3 4 5
6 7 8 1 2 3 4
1 2 3 4 5 6 7 8
NFAS, Timeslot 0
FAS, Timeslot 0
5
2
TDLCLK[x]
TDLSIG[x]
Don't Care
Don't Care
4 5 6 7 8
When the TS0 maintenance datalink is active (DLEN=0 or SIGEN=1,
TXDMASIG=0, at least one TXSAxEN bit is a logic 1), the data presented on
TDLSIG[x] is inserted into the National Use bits of the NFAS frames. A clock
pulse is generated on TDLCLK[x] for each National Use bit on TDLSIG[x] which
has the associated enable (TXSAxEN, x=4 to 8) set to logic 1. If the enable is