XRT72L50 Datasheet, PDF (328/471 Pages) Exar Corporation – SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L50
SINGLE CHANNEL DS3/E3 FRAMER WITH HDLC CONTROLLER
REV. 1.2.1
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RxE3 LAPD Status Register (Address = 0x19)
BIT 7
Not Used
BIT 6
RxABORT
RO
RO
0
0
BIT 5
BIT 4
RxLAPDType[1:0]
RO
RO
0
0
BIT 3
RxCR
Type
RO
0
BIT 2
RxFCS
Error
RO
0
BIT 1
End of
Message
RO
1
In summary, Figure 131 presents a flow chart depicting how the LAPD Receiver functions.
BIT 0
Flag
Present
RO
0
315