
115
t
RSD2
ø
T
2
AS*
A15 to A0,
IOS*
t
ASD
RD
(read)
T
3
t
AS
t
AS
t
AH
t
AH
t
ASD
t
ACC4
t
RSD1
t
ACC5
t
RDS
t
RDH
t
WRD1
t
WRD2
t
WDS
t
WSW2
t
WDH
D7 to D0
(read)
WR
(write)
D7 to D0
(write)
T
1
t
WDD
t
AD
t
CSD
Note: * AS and IOS are the same pin. The function is selected b
the IOSE bit in SYSCR.
Figure 22.34 Basic Bus Timing (Three-State Access)