á
XRT72L50
SINGLE CHANNEL DS3/E3 FRAMER WITH HDLC CONTROLLER
REV. 1.2.1
112
the Receive DS3/E3 Framer block, within the last one-second sampling period. This register contains the MSB
(or Upper-Byte) value of this 16 bit expression.
2.3.8.16
One-Second Line Code Violation Accumulator Register - LSB
This Read-Only register, along with the LCV - One-Second Accumulator Register - MSB (Address = 0x6E)
contains a 16-bit representation of the number of LCV (Line Code Violation) Events that have been detected by
the Receive DS3/E3 Framer block, within the last One-Second sampling period. This register contains the LSB
(or Lower-Byte) value of this 16 bit expression.
2.3.8.17
One-Second Frame Parity Error Accumulator Register - MSB
This Read-Only register, along with the Frame Parity Errors - One-Second Accumulator Register - LSB
(Address = 0x71) contains a 16-bit representation of the number of Frame Parity Errors that have been
detected by the Receive DS3/E3 Framer block, within the last One-Second sampling period. This register
contains the MSB (or Upper-Byte) value of this 16 bit expression.
NOTES:
1.
For DS3 applications, the Frame-Parity Errors - One Second Accumulator” register contains the number of P-bit
errors that have been detected in the last one-second sampling period.
2.
For E3, ITU-T G.751 applications, the Frame-Parity Error - One Second Accumulator” register contains the
number of BIP-4 errors that have been detected in the last one-second sampling period.
3.
For E3, ITU-T G.832 applications, the Frame-Parity Error - One Second Accumulator register contains the number
of BIP-8 errors that have been detected in the last one-second sampling period.
2.3.8.18
One-Second Frame Parity Error Accumulator Register - LSB
This Read-Only register, along with the Frame Parity Errors - One-Second Accumulator Register - MSB
(Address = 0x70) contains a 16-bit representation of the number of Frame Parity Errors that have been
detected by the Receive DS3/E3 Framer block, within the last one-second sampling period. This register
contains the LSB (or Lower-Byte) value of this 16 bit expression.
NOTES:
LCV - One-Second Accumulator Register - LSB (Address = 0x6F)
BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0
LCV - One-Second Count - Low Byte
RO
0
0000
000
Frame Parity Errors - One-Second Accumulator Register - MSB (Address = 0x70)
BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0
Frame Parity Error Count - High Byte
RO
0
0000
000
Frame Parity Errors - One-Second Accumulator Register - LSB (Address = 0x71)
BIT 7BIT 6BIT 5BIT 4BIT 3BIT 2BIT 1BIT 0
Frame Parity Error Count - Low Byte
RO
0
0000
000