XRT72L56 Datasheet, PDF (62/486 Pages) Exar Corporation – SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER

XRT72L56
SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
REV. P1.1.2
áç
PRELIMINARY
FIGURE 17. MICROPROCESSOR INTERFACE TIMING - INTEL TYPE PROGRAMMED I/O READ OPERATIONS
ALE_AS
A[11:0]
CS
D[7:0]
RD_DS
WR_R/W
RDY_DTCK
t64
t65
Address of Target
t67
Not Valid
t69
t66
t701
t68
Valid
t70
FIGURE 18. MICROPROCESSOR INTERFACE TIMING - INTEL TYPE PROGRAMMED I/O WRITE OPERATIONS
ALE_AS
A[11:0]
CS
D[7:0]
RD_DS
WR_R/W
t64
t65
Address of Target
t770
t71
t72
Data to be
t73
t66
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