DS2182A View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated

Part Name

Description

Manufacturer

DS2182A

T1 Line Monitor Chip

Dallas Semiconductor -> Maxim Integrated 

RSR1: RECEIVE STATUS REGISTER 1

DS2182A

MSB

8ZD

16ZD

RCL

RYEL

RLOS

B8ZSD

RBL

LSB

COFA

SYMBOL

POSITION

FUNCTION

8ZD

16ZD

RCL

RYEL

RLOS

B8ZSD

RBL

COFA

RSR1.7

RSR1.6

RSR1.5

RSR1.4

RSR1.3

RSR1.2

RSR1.1

RSR1.0

8 Zero Detect. Set when a string of eight consecutive 0’s has been

received at RPOS and RNEG.

16 Zero Detect. Set when a string of 16 consecutive 0’s has been

received at RPOS and RNEG.

Receive Carrier Loss. Set when a string of 192 consecutive 0’s

has been received at RPOS and RNEG. Cleared when 14 or more

1’s out of 112 possible bit positions are received.

Receive Yellow Alarm. Set when yellow alarm is detected. The

format of yellow alarm is determined by RCR2.3 and RCR2.4.

Receive Loss-of-Sync. Set when resync is in progress.

B8ZS Code Word Detect. Set when a B8ZS code word is

received at RPOS and RNEG independent of whether the B8ZS

mode is enabled or not (RCR2.2).

Receive Blue Alarm. Set when over a 3ms window, five or fewer

0’s are received. Cleared when over a 3ms window, six or more 0’s

are received.

Change-of-Frame Alignment. Set when the last resync resulted in

a change-of-frame or multiframe alignment.

Note: Alarm 8ZD and 16ZD are cleared on the next occurrence of a 1 at RPOS and RNEG.

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