English
Language : 

XRT83L314 Datasheet, PDF (52/84 Pages) Exar Corporation – 14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
◁
XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
FIGURE 43. MOTOROLA µP INTERFACE SIGNALS DURING PROGRAMMED I/O READ AND WRITE OPERATIONS
READ OPERATION
WRITE OPERATION
TS
uPCLK
ADDR[10:0]
CS
DATA[7:0]
WE
R/W
TA
t0
t3
t1
tdc
tcp
Valid Address
Valid Data for Readback
t2
t0
t3
t1
Valid Address
Data Available to Write Into the LIU
t2
TABLE 19: INTEL MICROPROCESSOR INTERFACE TIMING SPECIFICATIONS
SYMBOL
PARAMETER
MIN
MAX
t0
Valid Address to CS Falling Edge
t1
CS Falling Edge to WE Assert
t2
WE Assert to TA Assert
NA
WE Pulse Width (t2)
t3
CS Falling Edge to TS Falling Edge
tdc
µPCLK Duty Cycle
tcp
µPCLK Clock Period
0
-
0
-
-
150
150
-
0
-
40
60
20
-
UNITS
ns
ns
ns
ns
%
ns
48
 ▷