XRT86VL38 Datasheet, PDF (142/180 Pages) Exar Corporation – OCTAL T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION

XRT86VL38
PRELIMINARY
OCTAL T1/E1/J1 FRAMER/LIU COMBO - E1 REGISTER DESCRIPTION
REV. P1.0.9
TABLE 111: RXLOS/CRC INTERRUPT STATUS REGISTER (RLCISR)
HEX ADDRESS: 0XNB12
BIT
FUNCTION
TYPE DEFAULT
DESCRIPTION-OPERATION
4 AIS16
RO
0
AIS 16 State
This bit indicates whether or not the Receive E1 Framer is declaring
AIS 16 (Time slot 16 = All Ones Signal) alarm condition.
0 - Indicates the Receive E1 Framer is currently NOT declaring the
AIS16 alarm condition.
1 - Indicates the Receive E1 Framer is currently declaring the AIS16
alarm condition.
3 RxLOSINT
RUR/
WC
0
Change in Receive LOS condition Interrupt Status
This bit indicates whether or not the “Change in Receive LOS condi-
tion” interrupt has occurred since the last read of this register.
If this interrupt is enabled, then the Receive E1 Framer block will
generate an interrupt in response to either one of the following
conditions.
1. Whenever the Receive E1 Framer block declares the Receive
LOS condition.
2. Whenever the Receive E1 Framer block clears the Receive
LOS condition.
0 = Indicates that the “Change in Receive LOS Condition” interrupt
has not occurred since the last read of this register.
1 = Indicates that the “Change in Receive LOS Condition” interrupt
has occurred since the last read of this register.
2 CRCLOCK_INT
RUR/
WC
0
Change in CRC Multiframe Alignment In-Frame Interrupt Status
This bit indicates whether or not the E1 Receive Framer block has
lost or gained CRC Multiframe Alignment since the last read of this
register.
If this interrupt is enabled, then the Receive E1 Framer block will
generate an interrupt in response to either one of the following
conditions.
1. Whenever the Receive E1 Framer block declares CRC
Multiframe Alignment LOCK.
2. Whenever the Receive E1 Framer block declares Loss of
CRC Multiframe Alignment.
0 = Indicates that the “Change in CRC Multiframe Alignment In-
Frame” interrupt has not occurred since the last read of this register.
1 = Indicates that the “Change in CRC Multiframe Alignment In-
Frame” interrupt has occurred since the last read of this register.
137