XRT72L50 Datasheet, PDF (46/471 Pages) Exar Corporation – SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L50
SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. 1.2.1
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FIGURE 17. MICROPROCESSOR INTERFACE TIMING - INTEL-TYPE PROGRAMMED I/O READ OPERATION
A[8:0]
CS
ALE
RD
WR
D[7:0]
RDY
Valid Address
t68
t64
t65
t70
t71
Valid Data
t66
t69
FIGURE 18. MICROPROCESSOR INTERFACE TIMING - INTEL-TYPE PROGRAMMED I/O WRITE OPERATION
A[8:0]
t68
CS
t64
ALE
RD
t65
t70
t66
WR
t71
D[7:0]
RDY
t67
t69
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