XRT79L71 Datasheet, PDF (174/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

XRT79L71
REV. P1.0.3
BIT NUMBER
NAME
3
Change in FERF State
Interrupt Status
2
Detection of BIP-8 Error
Interrupt Status
1
Detection of Framing
Byte Error Interrupt
Status
PRELIMINARY
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1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
TYPE
RUR
RUR
RUR
DESCRIPTION
Change in FERF (Far-End Receive Failure) State Interrupt
Status:
This RESET-upon-READ bit-field indicates whether or not the
"Change in FERF State" Interrupt has occurred since the last
read of this register.If this interrupt is enabled, then the DS3/E3
Framer block will generate an interrupt in response to the follow-
ing events.
• When the Frame Synchronizer block declares the FERF
condition.
• When the Frame Synchronizer block clears the FERF
condition.
0 - Indicates that the "Change in FERF State" Interrupt has NOT
occurred since the last read of this register.
1 - Indicates that the "Change in FERF State" Interrupt has
occurred since the last read of the register.
NOTE: The user can obtain the state of the FERF condition, by
reading out the contents of Bit 0 (RxFERF) within the
"RxE3 Configuration and Status Register # 2 - G.832"
(Direct Address = 0x1111).
Detection of BIP-8 Error Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the
"Detection of BIP-8 Error" Interrupt has occurred since the last
read of this register.
If this interrupt is enabled, then the DS3/E3 Framer block will
generate an interrupt anytime is detects a BIP-8 Error in the
incoming E3 data-stream.
0 - Indicates that the "Detection of BIP-8 Error" Interrupt has
NOT occurred since the last read of this register.
1 - Indicates that the "Detection of BIP-8 Error" Interrupt has
occurred since the last read of this register.
Detection of Framing Byte Error Interrupt Status:
This RESET-upon-READ bit-field indicates whether or not the
"Detection of Framing Byte Error" Interrupt has occurred since
the last read of this register.
If this interrupt is enabled, then the DS3/E3 Framer block will
generate an interrupt anytime is detects an error in either the
FA1 or FA2 byte, within the incoming E3 data-stream.
0 - Indicates that the "Detection of Framing Byte Error" Interrupt
has NOT occurred since the last read of this register.
1 - Indicates that the "Detection of Framing Byte Error" Interrupt
has occurred since the last read of this register.
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