XRT79L71 Datasheet, PDF (190/441 Pages) Exar Corporation – 1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC

XRT79L71
REV. P1.0.3
BIT NUMBER
NAME
0
TxFEAC Busy
PRELIMINARY
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1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
TYPE
R/O
DESCRIPTION
Transmit FEAC Controller BUSY Indicator:
This READ-ONLY bit-field indicates whether or not the Transmit
FEAC Controller is currently busy transmitting a FEAC Message
to the remote terminal.
0 - Transmit FEAC Controller is NOT busy.
1 - Transmit FEAC Controller is currently transmitting the FEAC
Message to the remote terminal.
TXDS3 FEAC REGISTER (DIRECT ADDRESS = 0X1132)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Unused
TxFEACCode[5:0]
R/O
R/W
R/W
R/W
R/W
0
1
1
1
1
BIT 2
R/W
1
BIT 1
R/W
1
BIT 0
Unused
R/O
0
BIT NUMBER
NAME
7
Unused
6-1
TxFEACCode[5:0]
0
Unused
TYPE
R/O
R/W
R/O
DESCRIPTION
Transmit FEAC Code Word[5:0]
These six (6) READ/WRITE bit-fields permit the user to specify
the FEAC Code word that the Transmit FEAC Processor (within
the Frame Generator block) should transmit to the remote termi-
nal equipment.
Once the user enables the "Transmit FEAC Controller" and com-
mands it to begin its transmission, the Transmit FEAC Controller
will then (1) encapsulate this six-bit code word into a 16-bit struc-
ture, (2) proceed to transmit this 16-bit structure 10 times,
repeatedly, and then halt.
NOTE: These bit-fields are ignored if the user does not enable
and use the Transmit FEAC Controller.
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