
DS34S132 DATA SHEET
19-4750; Rev 1; 07/11
165 of 194
Table 10-61. TDM Port “n” Register Settings for E1 Applications (Pn.; n = 0 to 31)
Reg-bit
Bit Name
RT SAT
CES no
CAS
CES w/
CAS
Bit Name Description
Comments
TXSCn.CR1 - CR4
31:0
CTS0-CTS23 T
0
x
TXP SW CAS (TS 0 – 31)
SW CAS transmitted in TXP TDM Bundle.
RXSCn.CR1 - CR4
31:0
CTS0-CTS23 R
0
x
Xmt (RXP) SW CAS (TS0-23) SW CAS transmitted at TDM Port.
PTCR1.
31 DR
R
x
Data path Reset
0 = Normal; 1 = Hold all data path registers in reset value
28 SFS
R
0
1
Structure Format Select
Unstructured (0) or Structured (1)
27 FFS
R
0
Frame Format
0 = E1
26:25 MFS
R
0
x
CAS Multi-frame Format
0 = no CAS multi-frame; 1 = E1
24:23 BFD
R
[3]
# Frame(Block) per Buffer
0 = disable port rcv; 1 = 1 block; 2 = 2 blocks; 3 = 4 blocks
22:18 BPF
R
[0x1F]
[0x1F] Bytes per Frame(Block)
0x1F (32 bytes; 0x00 = 1 byte/frame; BPF ≤ PMS)
17 DP
R
x
Decap Priority
Low priority (0) or High priority (1)
16 DOSOT
R
0
x
Disable CAS on TDAT
Overwrite CAS on TDAT (0) or do not overwrite TDAT (1)
PTCR2.
9 PRPTLL
RT
x
Port Rcv to Xmt Line Loopbk
0 = loopback disabled (normal); 1 = loopback enabled
8 TIOE
R
x
Transmit Input/Output Enable 0 = TDAT/TSYNC/TSIG disabled (high Z); 1 = enabled
7 TCE
R
x
Transmit Clock Enable
0 = TCLKO disabled (high Z); 1 = enabled
6 TSRS
R
0
x
Transmit Framing Source
Synchronize transmit timing to RSYNC (0) or TSYNC (1)
5 TDS
R
0
x
TSYNC Direction Select
Input (0) or output (1).
4 TOES
R
x
Transmit Output Edge Select 0 = positive edge; 1 = negative edge
3 TIES
R
x
Transmit Input Edge Select
0 = positive edge; 1 = negative edge
2:0 TSS
R
x
TCLKO Source Select
0 = RCLK; 1 = aclk; 2 = grclk; 4 = EXTCLK0; 5 = EXTCLK1
PTCR3.
31:0 PRPTTSL
RT
0
x
Port Rcv to Xmt TS Loopback 0 = loopback disabled (normal); 1 = enabled (1 bit per TS)
PRCR1.
31 DR
T
x
Data path Reset
0 = Normal; 1 = Hold all data path registers in reset value
28 SFS
T
0
1
Structure Format Select
Unstructured (0) or Structured (1)
27 FFS
T
0
Frame Format
0 = E1
26:25 MFS
T
0
x
CAS Multi-frame Format
0 = no CAS multi-frame; 1 = E1
24:23 BFD
T
[3]
# Frame(Block) per Buffer
0 = disable port rcv; 1 = 1 block; 2 = 2 blocks; 3 = 4 blocks
22:18 BPF
T
[0x1F]
[0x1F] Bytes per Frame(Block)
0x1F (32 bytes; 0x00 = 1 byte/frame; BPF ≤ PMS)
17 EP
T
x
Encap Priority
Low priority (0) or High priority (1)
16 CS
T
0
x
CAS Source
RDAT (0) or RSIG (1)
15 CBVSE
NA
0
C-bit Value
NA
14 DBVSE
NA
0
D-bit Value
NA
13 LB
T
x
L-bit Value
L-bit Value for all TXP Bundles associated with Port “n“
12 LBSS
T
x
L-bit Source (all Pn Bundles)
TXP Bundle L-bit source: LB (0); TXP Bundle Descriptor (1)
11:1 SPL
T
[0x1F]
0
SAT Packet Payload Length
SPL = B.BCDR1.PMS ≥ BPF (E1: 0x1F)
PRCR2.
6 RSTS
T
0
x
Receive Framing Source
0 = RSYNC input; 1 = synchronize to Transmit Port timing
5 RDS
T
0
x
RSYNC Direction Select
Input (0) or output (1).
3 RIES
T
x
RCLK Edge Select
Positive edge (0) or negative edge (1)
0 RSS
T
x
Receive clock Source Select
RCLK (0) or TCLKO (1)
PRCR3.
T
31:0 PTPRTSL
RT
0
x
Port Xmt to Rcv TS Loopback 0 = loopback disabled (normal); 1 = enabled (1 bit per TS)
PRCR4.
16 TSGMS
T
x
TXP Timestamp Gen Mode
0=Differential (CMNCLK); 1=Absolute (RSS select Rcv ck)
15:0 TSGMC
T
x
TXP Timestamp Gen M Coeff M = INT(637009920000 / CMNCLK)
PRCR5.
28:16 TSGN1C
T
x
TXP T-stamp Gen N1 Coeff
N1 = 79626240 + (M * CMNCLK / 8000)
12:0 TSGN0C
T
x
TXP T-stamp Gen N0 Coeff
N0 = N1 + (CMNCLK / 8000)