STLC5460 datasheet(14/54 Pages) STMICROELECTRONICS

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M0D

Multiplex 0 Disable.

M0D = 1. Multiplex 0 output is at high impedance continuously,

multiplex 0 input is forced to ”1”, if it is GCI.

TIMD

Timer Monitor Channel Disabled.

TIMD = 1. The timer 1ms is disabled for each Transmit Monitor Channel.

ISPM

Input Sampling Multiplex.

ISPM = 0. The input bit is sampled at half bit time.

ISPM = 1. The input bit is sampled at 3/4 bit time.

MOD

Multiplex Open Drain.

MOD = 1. The two multiplex outputs are open drain.

MOD = 0. The two multiplex outputs are at low impedance

DCKM

Double clock for Multiplex.

DCKM = 1. DCL is twice data rate (Ex : if Data Rate = 2048 kb/s,DCL = 4096 kHz).

DCKM = 0. DCL is simple clock.

PCM CONFIGURATION REGISTER (PCONF)

TSNB

DEL

PFSP

ODL

ISPP

POD

SCKP

After Reset 00 (H)

TSNB

Time Slot numbering.

TSNB defines the order of TS on the PCM when the data rate is 4 Mb/s or 8 Mb/s

related to the order of TS on the PCM at 2 Mb/s (see table hereafter).

DEL

Delayed Mode for each PCM.

DEL = 1. A delay of one clock pulse is applied to the first bit of the frame of each PCM.

DEL = 0. PFS indicates the first bit of the frame for each PCM (if OFFSET and shift are

zero).

PFSP

PCM Frame Synchronisation Sampling.

PFSP = 0. PFS signal is sampled on the fall edge of PDC signal.

PFSP = 1. PFS signal is sampled on the rise edge of PDC signal.

ODL

Output Delay.

ODL = 0. The bits are shifted out with zero delay.

ODL = 1. The bits are shifted out with a delay of one half bit time.

ISPP

Input Sampling PCM.

ISPP = 0. The input bit is sampled at half bit time.

ISPP = 1. The input bit is sampled at 3/4 bit time.

POD

PCM Open Drain.

POD = 1. The PCM outputs are open drain

POD = 0. The PCM outputs are at low impedance.

SCKP

Simple clock for PCM.

SCKP = 0. PDC signal is twice data rate. (Ex : if data rate = 2048 kb/s, PDC = 4096

kHz).

SCKP = 1. PDC is simple clock

STLC5460

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