PRELIMINARY
PM4318 OCTLIU
DATASHEET
PMC- 2001578
ISSUE 3
OCTAL E1/T1/J1 LINE INTERFACE DEVICE
Register 053H, 0D3H, 153H, 1D3H, 253H, 2D3H, 353H, 3D3H: IBCD Deactivate Code
Bit
Type
Function
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
DACT7
DACT6
DACT5
DACT4
DACT3
DACT2
DACT1
DACT0
0
0
0
0
0
0
0
0
When the E1/T1B bit of the Global Configuration register is a logic 1, this register is held reset.
This 8-bit register selects the Deactivate code sequence that is to be detected. If the code
sequence length is less than 8 bits, the first 8 bits of several repetitions of the code sequence
must be used to fill the 8-bit register. For example, if code sequence is a repeating 001, the first 8
bits of three repetitions (001001001) is programmed into the register, i.e.00100100. Note that bit
DACT7 corresponds to the first code bit received.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
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