Hitachi H8S/2678 Series Reference Manual page 147

Read
Write
Notes: 1. n = 0 to 7
2. When RDNn = 0
Figure 4.13 Bus Timing for 16-Bit, 2-State Access Space (3)
130
ø
Address bus
CSn
AS
RD
D15 to D8
D7 to D0
HWR
LWR
D15 to D8
D7 to D0
Bus cycle
T
1
Valid
Valid
(Word Access)
T
2
Valid
Valid