145
t
RSD2
ø
T
1
t
AD
AS*
A15 to A0,
IOS*
Note: * AS and IOS are the same pin. The function is selected by the IOSE bit in SYSCR.
t
ASD
RD
(read)
t
CSD
T
2
t
AS
t
AS
t
AS
t
ASD
t
ACC2
t
RSD1
t
ACC3
t
RDS
t
RDH
t
WRD2
t
WRD2
t
WDD
t
WSW1
t
WDH
D7 to D0
(read)
WR
(write)
D7 to D0
(write)
t
AH
t
AH
Figure 22.58 Basic Bus Timing (Two-State Access)
