XRT79L71 Datasheet, PDF (185/441 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
RXE3 TTB-15 REGISTER - G.832 (DIRECT ADDRESS = 0X112B)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
RxTTB_15[7:0]
R/O
R/O
R/O
R/O
R/O
0
0
0
0
0
BIT 2
R/O
0
XRT79L71
REV. P1.0.3
BIT 1
R/O
0
BIT 0
R/O
0
BIT NUMBER
NAME
7-0
RxTTB_15[7:0]
TYPE
R/O
DESCRIPTION
Receive Trail-Trace Buffer Message - Byte 15:
These READ-ONLY bit-fields contain the contents of Byte 15,
within the most recently received Trail-Trace Buffer" Message.
RXE3 SSM REGISTER - G.832 (DIRECT ADDRESS = 0X112C)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
RxSSM
Enable
MF[1:0]
Reserved
R/W
R/O
R/O
R/O
R/O
0
0
0
0
0
BIT 2
BIT 1
RxSSM[3:0]
R/O
R/O
0
0
BIT 0
R/O
0
BIT NUMBER
NAME
7
RxSSM Enable
6-5
MF[1:0]
4
3-0
Unused
RxSSM[3:0]
TYPE
R/W
R/O
R/O
R/O
DESCRIPTION
Receive SSM Enable:
This READ/WRITE bit-field permits the user to configure the
Frame Synchronizer block to operate in either the "Old ITU-T
G.832 Framing" format or in the "New ITU-T G.832 Framing" for-
mat.
0 - Configures the Frame Synchronizer block to support the "Pre
October 1998" version of the E3, ITU-T G.832 Framing format.
1 - Configures the Frame Synchronizer block to support the
"October 1998" version of the E3, ITU-T G.832 framing format.
Multi-Frame Identification:
These READ-ONLY bit-fields reflect the current frame number,
within the Received Multi-Frame.
NOTE: These bit-fields are only active if the DS3/E3 Frame
Synchronizer block is active, and if Bit 7 (RxSSM
Enable) of this register is set to "1".
Receive Synchronization Status Message[3:0]:
These READ-ONLY bit-fields reflect the content of the "SSM"
bits, within the most recently received SSM Multiframe.
NOTE: These bit-fields are only active if the DS3/E3 Frame
Synchronizer block is active, and if Bit 7 (RxSSM
Enable) of this register is set to "1".
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