82C237
Timing Waveforms
CS
TCWL
(43)
TWC (53)
IOW
TWWS
(55)
TAWL
(42)
TWA (52)
TWD (54)
A0 - A3
INPUT VALID
TDW
(44)
DB0 -DB7
INPUT VALID
FIGURE 10. SLAVE MODE WRITE
NOTE: Successive WRITE accesses to the 82C237 must allow at least TCY as recovery time between accesses. A TCY recovery time must
be allowed before executing a WRITE access after a READ access.
CS
A0 - A3
IOR
ADDRESS MUST BE VALID
TAR
(41)
TRA (45)
TRW
(51)
TRDE
(46)
TRDF
(47)
DB0 -DB7
DATA OUT VALID
FIGURE 11. SLAVE MODE READ
NOTE: Successive READ accesses to the 82C237 must allow at least TCY as recovery time between accesses. A TCY recovery time must
be allowed before executing a READ access after a WRITE access.
4-168
INTERSIL [ Intersil ]
