STA002 datasheet(22/43 Pages) STMICROELECTRONICS

22 / 43 page

This register controls the Phase and frequency

detector threshold (see par. 3.4.3) and the C/N

indicator (see 3.8.2)

FLAG REGISTER

internal address: 99 H

LOCK CNFLAG

reserved

This is a read only register when the LOCK bit is

0 then the carrier is locked. When the CNFLAG

bit is 1 then the C/N estimation is available.

4. TDM DEMULTIPLEXING

4.1 TDM_MULTIPLEX REGISTERS.

Reg name: TDM_TRSH1

Internal address: 200 H

Type: R/W

Reset Value: 4BH

MSB

LSB

b6b5b4b3b2

b1b0

Description: Master frame preamble recognition -

Synchronization threshold level.

Definition of the minimum number of TDM pre-

amble bits to be recognized before enabling the

frame synchronization.

Reg name: TDM_TRSH2

Internal address: 201 H

Type: R/W

Reset Value: 43H

MSB

LSB

b6b5b4b3b2b1b0

Description: Master frame preamble recognition -

Warning flag threshold level.

Definition of the minimum number of TDM pre-

amble bits to be recognized before setting an

alarm condition.

Reg name: TDM_ALARM

Internal address: 207 H

Type: R/W

Reset Value: 00H

MSB

LSB

Description: TDM finite state machine control reg-

ister (see Table 4).

Reg name: PRC_TRSH1

Internal address: 202 H

Type: R/W

Reset Value: 2AH

MSB

LSB

Description: Prime rate channel preamble recog-

nition - Synchronization threshold level.

Definition of the minimum number of PRC pre-

amble bits to be recognized before enabling PRC

synchronization.

Table 4: TDM FSM active states

TDM FSM active states

XXXXX

mfp_detection, mfp_presync, mfp_sync,alarm 1 (1 cycle)

XXXXX

mfp_detection, mfp_presync, mfp_sync,alarm 1 (2 cycle)

XXXXX

mfp_detection, mfp_presync, mfp_sync,alarm 1 (3 cycle)

XXXXX

mfp_detection, mfp_presync, mfp_sync,alarm 1 (4 cycle)

00001

mfp_detection, mfp_presync, mfp_sync, alarm 1, alarm 2 (1 cycles)

00011

mfp_detection, mfp_presync, mfp_sync, alarm 1, alarm 2 (2 cycles)

----

mfp_detection, mfp_presync, mfp_sync, alarm 1, alarm 2 (n cycles)

11111

mfp_detection, mfp_presync, mfp_sync, alarm 1, alarm 2 (32 cycles)

STA002

22/43

STA002 数据表(PDF) 22 Page - STMicroelectronics

STA002 数据表(HTML) 22 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

数据表下载

链接网址

STA002 数据表(PDF) 22 Page - STMicroelectronics

STA002 数据表(HTML) 22 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

数据表 下载

链接网址

数据表下载