Intel MCS48 User Manual page 390

8291
TIMING
WAVEFORMS
READ
5S/RSj
IX
-*AR-
\
DATA
BUS
,
(DATA OUT)
X
r~^\
^
V
VALID DATA
^
WRITE
DMA
ZX
DATA
BUS
(DATA
IN)
X
X
'aw-»-
DATA MAY CHANGE
-t
D
w
-
•-tWA-
*'
+
t RV
»'
A
*WD
V
VALID
DATA
if
DATA MAY CHANGE
NOTES:
1. t Rv
IS
THE
TIME
BETWEEN READ OR WRITE OPERATIONS
WITH
THE
CHIP
SELECTED
(CHIP
RECOVERY
TIME).
J
K
=
V_
8-100
00229A