MT9075A Mitel Networks Corporation, MT9075A Datasheet - Page 49

• Manufacturer Part Number: MT9075A
• Description: E1 Single Chip Transceiver
• Manufacturer: Mitel Networks Corporation

Preliminary Information
Bit
7
6
5
4
3
2
1
0
PRBSO PRBS Error Counter Overflow.
FEBEO
BERO
Name
BPVO
Table 52 - Overflow Reporting Latch
CCO
LBO
EFO
JFO
(Page 04H, Address 16H)
This bit is set to one when the
PRBS Error Counter (page 04H
address
cleared when this register is read.
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
register is read.
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
register is read.
Lost
Synchronization
Overflow. This bit is set to one
when the Loss of Basic Frame
Synchronization Counter (page 04H
address
cleared when this register is read.
Bit Error Rate Counter Overflow.
This bit is set to one when the Bit
Error Rate Counter (page 04H,
address
cleared when this register is read.
Errored Frame Alignment Signal
Counter Overflow. This bit is set to
one
Alignment Signal Counter (page
04H, address 1AH) overflows. It is
cleared when this register is read.
Bipolar
Overflow. This bit is set high when
the Bipolar Violation Counter (page
04H,
overflows. It is cleared when this
register is read.
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.
Functional Description
when
address
of
10H)
17H)
18H)
Violation
the
Basic
overflows.
overflows.
overflows.
1CH
Errored
&
Counter
Counter
Frame
Frame
It
It
It
1DH)
is
is
is
7 - 0
7 - 0
7 - 2
Table 53 - Loss of Basic Synchronization Counter
Bit
Bit
Bit
1
0
RCRC1 RAI and Continuous CRC Error
RCRC0 RAI and Continuous CRC Error
Name
Name
Name
LBF7
LBF0
Table 55 - RAI With CRC Error Word
BR7
BR0
Table 54 - Bit Error Rate Counter
---
-
-
(Page 04H, Address 17H)
(Page 04H, Address 18H)
(Page 04H, Address 19H)
Loss
Synchronization
eight bit counter will be incremented
once for every 125 microsecond
period
synchronization is lost. It will be
cleared
synchronization to loss of basic
frame
transition.
Bit Error Rate Counter. An eight
bit counter that contains the total
number of errors in the frame
alignment signal.
Unused
bit 1. This bit goes high when
received A (RAI) bits were high and
receive
continuously, for more than 10
milliseconds, but less than 450
milliseconds. This bit is cleared
when read.
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.
Functional Description
Functional Description
Functional Description
in
of
synchronization
by
E
which
bits
a
Basic
MT9075A
Counter.
basic
basic
were
Frame
frame
frame
state
This
low,
4-177