XRT72L71 Datasheet, PDF (94/102 Pages) Exar Corporation – DS3 ATM UNI/CLEAR CHANNEL FRAMER

XRT72L71
DS3 ATM UNI/CLEAR CHANNEL FRAMER
REV. 1.1.0
áç
REGISTER 109
BIT
FUNCTION
7 Rx FIFO 16
6 Reserved
4-2 Unused
1 Rx FIFO Full
0 Rx FIFO Empty
TABLE 110: RX UTOPIA FIFO STATUS REGISTER
RX UTOPIA FIFO STATUS REGISTER
HEX ADDRESS: 0X6D
TYPE
DEFAULT
DESCRIPTION-OPERATION
0: Operating Depth of RxFIFO is 4 cells deep.
1: Operating Depth of RxFIFO is 16 cells deep.
R/W
0
NOTE: This bit-field is only active if the XRT72L71 is configured to operate
in the “ATM UNI” Mode.
R/W
0
Set to 0
RO
0
0: RxFIFO is not full
1: RxFIFO is full and if next event is not a read operation, it may cause over-
RO
0
run.
NOTE: This bit-field is only active if the XRT72L71 is configured to operate
in the “ATM UNI” Mode.
0: RxFIFO is not empty
1: RxFIFO is empty and any subsequent read operation may cause and
RO
1
under-run to occur.
NOTE: This bit-field is only active if the XRT72L71 is configured to operate
in the “ATM UNI” Mode.
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