
214
Agere Systems Inc.
Data Sheet
May 2001
155/622/2488 Mbits/s Data Interface
TDAT042G5 SONET/SDH
Register Descriptions
(continued)
DE Registers
(continued)
Table 114. Registers 0x1010
—
0x1015: Sequencer Provisioning Registers (R/W)
(continued)
Reset default of register 0x1010 = 0x0002.
Reset default of register 0x1011 = 0x2210.
Reset default of registers 0x1012, 0x1014 = 0x0435.
Reset default of registers 0x1013, 0x1015 = 0x0025.
Note:
The settings of these registers must be consistent with core mode register (address 0x0010).
Address
(Hex)
1010
Bit #
Name
Function
Reset
Default
0x0002
—
SEQ_CTRL
Sequencer Control.
Selects STS-3/STM-1, STS-
12/STM-4, or STS-48/STM-16 mode for the data
engine. Allowed values are as follows:
STS-3/STM-1 = 0x0001
STS-12/STM-4 = 0x0003
STS-48/STM-16 = 0x0002
Reserved.
These bits must be written to their reset
default value (00000000000000).
15
—
2
—
00
0000
0000
0000
1
1
SEQ_RATE
Sequencer Rate.
Configures internal clock
derived from TxCKP/TxCKN.
0 = STS-3/STM-1 (internal clock = 19.440 MHz)
1 = STS-12/STM-4 or STS-48/STM-16
(internal clock = 77.760 MHz)
Sequencer Mode.
Used with bit 1 above to select
the mode.
0 = STS-48/STM-16
1 = STS-3/STM-1 or STS-12/STM-4
Initial Counts.
This register must be set to the
default value (0x2210).
OHP Marker Low.
This register must be
programmed as follows:
STS-48/STM-16 = 0x0435
STS-12/STM-4 = 0x0435
STS-3/STM-1 = 0x010B
OHP Marker High.
This register must be
programmed as follows:
STS-48/STM-16 = 0x0025
STS-12/STM-4 = 0x0025
STS-3/STM-1 = 0x0007
Sequence Provisioning for OHP Marker Low.
This register must be programmed as follows:
STS-48/STM-16 = 0x0435
STS-12/STM-4 = 0x0435
STS-3/STM-1 = 0x010B
Sequence Provisioning for OHP Marker High.
This register must be programmed as follows:
STS-48/STM-16 = 0x0025
STS-12/STM-4 = 0x0025
STS-3/STM-1 = 0x0007
0
SEQ_MODE
0
1011
15
—
0
INIT_CNTS
0x2210
1012
15
—
0
OH_MARKER_LO
0x0435
1013
15
—
0
OH_MARKER_HI
0x0025
1014
15
—
0
SOH_MARKER_LO
0x0435
1015
15
—
0
SOH_MARKER_HI
0x0025