Datasheet

____________________________________________________ DS34S101, DS34S102, DS34S104, DS34S108
Rev: 032609 51 of 198
Figure 10-27. Transmit SW CAS Table Format for E1 and T1-ESF Interfaces
31
0
ABCD
(TS7)
ABCD
(TS6)
ABCD
(TS5)
ABCD
(TS4)
ABCD
(TS3)
ABCD
(TS2)
ABCD
(TS1)
ABCD
(TS0)
ABCD
(TS15)
.. .. .. .. .. .. ABCD
(TS8)
ABCD
(TS23)
.. .. .. .. .. .. ABCD
(TS16)
ABCD
(TS31)
.. .. .. .. .. .. ABCD
(TS24)
Figure 10-28. Transmit SW CAS Table Format for T1-SF Interfaces
31
0
ABAB
(TS7)
ABAB
(TS6)
ABAB
(TS5)
ABAB
(TS4)
ABAB
(TS3)
ABAB
(TS2)
ABAB
(TS1)
ABAB
(TS0)
ABAB
(TS15)
.. .. .. .. .. .. ABAB
(TS8)
ABAB
(TS23)
.. .. .. .. .. .. ABAB
(TS16)
Table 10-19. CAS – Supported Interface Connections for AAL1 and CESoPSN
TDM-to-Packet
Interface Format
Packet-to-TDM
Interface Format
Transmitted Bits
E1 MF
E1 MF
CAS bits are transferred as-is.
T1 SF
T1 SF
T1 ESF
T1 ESF
T1 ESF
T1 SF
Only A and B bits transferred.
T1 SF
T1 ESF
A and B bits transferred. C and D bits sourced from the
SF_to_ESF_low_CAS_bits field in Port[n]_cfg_reg.
For structured-with-CAS bundles connecting two T1 SF/ESF interfaces, the per-bundle Tx_dest_framing bit in the
Bundle Configuration Tables indicates the destination interface framing type (SF or ESF).
The figures below shows the location of the CAS bits in the TDMn_RSIG_RTS data stream for each framing mode.
Figure 10-29. E1 MF Interface RSIG Timing Diagram (two_clocks=1)
TDMn_RCLK
TDMn_RX_SYNC
TDMn_RSIG
A
B
C
D
A
B
C
D
Timeslot 30 Timeslot 31 Timeslot 0
once in 2 milliseconds