XRT79L71 Datasheet, PDF (237/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

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PRELIMINARY
1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L71
REV. P1.0.3
PMON FRAMING BIT/BYTE ERROR COUNT REGISTER - MSB (DIRECT ADDRESS = 0X1152)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
PMON_Framing_Bit/Byte_Error_Count_Upper_Byte[7:0]
RUR
RUR
RUR
RUR
RUR
RUR
RUR
RUR
0
0
0
0
0
0
0
0
BIT NUMBER
NAME
7-0
PMON_Framing Bit/Byte
Error_Count_Upper
Byte[7:0]
TYPE
RUR
DESCRIPTION
Performance Monitor - Framing Bit/Byte Error Count - Upper
Byte:
These RESET-upon-READ bits, along with that within the
"PMON Framing Bit/Byte Error Count Register - LSB" combine
to reflect the cumulative number of Framing bit (or byte) errors
that have been detected by the Primary Frame Synchronizer
block, since the last read of this register.
This register contains the Most Significant byte of this 16-bit
expression.
NOTES:
1. For DS3 applications, this register will increment for
each F or M bit error detected.
2. For E3, ITU-T G.751 applications, this register will
increment for each FAS error detected.
3. For E3, ITU-T G.832 applications, this register will
increment for each FA1 or FA2 byte error detected.
4. These register bits are not active if the Primary Frame
Synchronizer block has been by-passed.
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