MT9075AP datasheet(49/78 Pages) MITEL

49 / 78 page

Preliminary Information

MT9075A

4-177

Bit

Name

Functional Description

PRBSO

PRBS Error Counter Overflow.

This bit is set to one when the

PRBS Error Counter (page 04H

address

10H)

overflows.

cleared when this register is read.

FEBEO

E Bit Counter Overflow. This bit is

set to one when the E bit Counter

(page 04H, address 13H & 14H)

overflows. It is cleared when this

JFO

Jitter Attenuator FIFO Counter

Overflow. This bit is set to one

when the Jitter Attenuator FIFO

Counter (page 04H, address 15H)

overflows. It is cleared when this

LBO

Lost

Basic

Frame

Synchronization

Counter

Overflow. This bit is set to one

when the Loss of Basic Frame

Synchronization Counter (page 04H

address

17H)

overflows.

cleared when this register is read.

BERO

Bit Error Rate Counter Overflow.

This bit is set to one when the Bit

Error Rate Counter (page 04H,

address

18H)

overflows.

cleared when this register is read.

EFO

Errored Frame Alignment Signal

Counter Overflow. This bit is set to

one

when

the

Errored

Frame

Alignment Signal Counter (page

04H, address 1AH) overflows. It is

cleared when this register is read.

BPVO

Bipolar

Violation

Counter

Overflow. This bit is set high when

the Bipolar Violation Counter (page

04H,

address

1CH

1DH)

overflows. It is cleared when this

CCO

CRC Error Counter Overflow. This

bit is set high when the CRC Error

Counter (page 04H, address 1EH &

1FH) overflows. It is cleared when

this register is read.

Table 52 - Overﬂow Reporting Latch

(Page 04H, Address 16H)

Bit

Name

Functional Description

7 - 0

LBF7

LBF0

Loss

Basic

Frame

Synchronization

Counter.

This

eight bit counter will be incremented

once for every 125 microsecond

period

which

basic

frame

synchronization is lost. It will be

cleared

basic

frame

synchronization to loss of basic

frame

synchronization

state

transition.

Table 53 - Loss of Basic Synchronization Counter

(Page 04H, Address 17H)

Bit

Name

Functional Description

7 - 0

BR7

BR0

Bit Error Rate Counter. An eight

bit counter that contains the total

number of errors in the frame

alignment signal.

Table 54 - Bit Error Rate Counter

(Page 04H, Address 18H)

Bit

Name

Functional Description

7 - 2

---

Unused

RCRC1

RAI and Continuous CRC Error

bit 1. This bit goes high when

received A (RAI) bits were high and

receive

bits

were

low,

continuously, for more than 10

milliseconds, but less than 450

milliseconds. This bit is cleared

when read.

RCRC0

RAI and Continuous CRC Error

Bit 0. This bit goes high when

received A (RAI) bits are high and

receive E bits are low, continuously,

for more than 10 milliseconds.

Table 55 - RAI With CRC Error Word

(Page 04H, Address 19H)

MT9075AP Datasheet(PDF) 49 Page - Mitel Networks Corporation

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