XRT72L13 Datasheet, PDF (352/370 Pages) Exar Corporation – M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC

XRT72L13
M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
REV. P1.0.6
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PRELIMINARY
• It will set Bit 0 (RxLAPD Interrupt Status), within the
“Rx DS3 LAPD Control” Register to “1”, as indi-
cated below.
RXDS3 LAPD CONTROL REGISTER (ADDRESS = 0X18)
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
Not Used
RO
RO
RO
RO
RO
0
0
0
0
0
BIT 2
RxLAPD
Enable
R/W
0
BIT 1
RxLAPD
Interrupt
Enable
R/W
1
BIT 0
RxLAPD
Interrupt
Status
RUR
1
• It will write the contents of this “newly” Received
LAPD Message into the “Receive LAPD Message”
buffer (located at 0xDE through 0x135).
Whenever the “Terminal Equipment” encounters the
“Receive LAPD Interrupt”, then it should read out the
contents of the “Receive LAPD Message” buffer, and
respond accordingly.
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