144
Agere Systems Inc.
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
9 SPE Mapper Registers
(continued)
0x30018
9:8
SPE_TSTS3TMSLOT[1:0]
Transmit STS-3 Time-Slot Value.
Two-bit value
selects one of three STS-1 time slots within an STS-3
in the transmit direction.
00 = no output.
01 = STS-1/TUG-3 data for slot 1 in STS-3/STM-1.
10 = STS-1/TUG-3 data for slot 2 in STS-3/STM-1.
11 = STS-1/TUG-3 data for slot 3 in STS-3/STM-1.
Receive STS-1 Mode.
When 1, STS-1 mode is
selected for receive data. When 0, STS-3/STM-1.
Receive Serial STS-1 SPE Mode.
When 1, serial data
demapped from STS-1 SPE is sent out to an external
serial interface.
Receive DS3 Output Type.
Two-bit value selects one
of three DS3 output devices.
00
7
SPE_R_STS1_MODE
0
6
SPE_R_NSMI_MODE
0
5:4
SPE_RDS3OUTTYP[1:0]
00 or 01 = DS3 data to M13 block.
10 = DS3 data to loopback (RX to TX).
11 = DS3 data to external clear channel.
Receive VT or DS3 Output.
When 1, VT data is out-
put; when 0, DS3 data is output.
Receive AU-3/STS-1 or TUG-3 Demapping.
When 1,
AU-3/STS-1 demapping is selected; when 0, TUG-3
demapping is selected.
00
3
SPE_R_VT_DS3
0
2
SPE_R_AU3_TUG3
0
1:0
SPE_RSTS3TMSLOT[1:0]
Receive STS-3 Time-Slot.
Selects one of three STS-1
time slots within an STS-3/STM-1 frame in the receive
direction.
00 = no selection.
01 = STS-1/TUG-3 data from slot 1 in STS-3/STM-1.
10 = STS-1/TUG-3 data from slot 2 in STS-3/STM-1.
11 = STS-1/TUG-3 data from slot 3 in STS-3/STM-1.
Transmit Serial Sync Position Within a Byte Bound-
ary.
Selects one of eight positions for the bit sync of the
serial transmit data stream (previously known as the
NSMI interface data).
Receive Serial Sync Position Within a Byte Bound-
ary.
Selects one of eight positions for the bit sync of the
serial receive data stream (previously known as the
NSMI interface data).
Reserved.
Jitter FIFO Mode.
When set to a 1, the SPE mapper
uses an extra FIFO to reduce jitter on the clear
channel.
Reserved.
External DS3 Clock Edge Select for DS3 Input Data
Retiming.
00
0x30019
15:13
SPE_T_NSMI_BIT[2:0]
0x0
12:10
SPE_R_NSMI_BIT[2:0]
0x0
9:8
7
RSVD
0x0
0
SPE_JITTER_FIFO
6
5
RSVD
—
0x0
SPE_TDS3CLK_EDGE
0 = negative edge is selected.
1 = positive edge is selected.
Table 163. SPE_MAP_CTL1—SPE_MAP_CTL3, Tx/Rx Control for Mapping Functions (R/W)
(continued)
Address
Bit
Name
Function
Reset
Default