DS2149 datasheet(12/32 Pages) MAXIM

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DS2149

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IMR (B010011): Interrupt Mask Register

MSb

LSb

Z16D

JALT

DFMO

B8ZSD

QRSS

AIS

NLOOP

RCL

SYMBOL

POSITION

FUNCTION

Z16D

IMR.7

0 = Enable 16-zero detect interrupt

1 = Disable 16-zero detect interrupt

JALT

IMR.6

0 = Enable jitter-attenuator limit-trip interrupt

1 = Disable jitter-attenuator limit-trip interrupt

DFMO

IMR.5

0 = Enable driver-open interrupt

1 = Disable driver-open interrupt

B8ZSD

IMR.4

0 = Enable B8ZS-detect interrupt

1 = Disable B8ZS-detect interrupt

QRSS

IMR.3

0 = Enable QRSS interrupt

1 = Disable QRSS interrupt

AIS

IMR.2

0 = Enable AIS interrupt

1 = Disable AIS interrupt

NLOOP

IMR.1

0 = Enable network-loopback interrupt

1 = Disable network-loopback interrupt

RCL

IMR.0

0 = Enable receive carrier-loss interrupt

1 = Disable receive carrier-loss interrupt

TSR (B010100): Transition Status Register

MSb

LSb

Z16D

JALT

DFMO

B8ZSD

QRSS

AIS

NLOOP

RCL

SYMBOL

POSITION

FUNCTION

Z16D

TSR.7

Set when the receiver detects 16 consecutive 0s; cleared when

IMR.7 is cleared.

JALT

TSR.6

Set when the jitter attenuator FIFO reaches to within 4 bits of its

limit; cleared when IMR.6 is cleared.

DFMO

TSR.5

Set when SR.5 changes state; cleared when IMR.5 is cleared.

B8ZSD

TSR.4

Set when the receiver detects B8ZS codewords; cleared when

IMR.4 is cleared.

QRSS

TSR.3

Set when SR.3 changes state; cleared when IMR.3 is cleared.

AIS

TSR.2

Set when SR.2 changes state; cleared when IMR.2 is cleared.

NLOOP

TSR.1

Set when SR.1 changes state; cleared when IMR.1 is cleared.

RCL

TSR.0

Set when SR.0 changes state; cleared when IMR.0 is cleared.

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