HD6433044 Datasheet, PDF (143/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

ø
Address bus
CS _n
AS
RD
Read
access
D₁₅ to D₈
D₇ to D ₀
HWR
Write
access
LWR
D₁₅ to D₈
D₇ to D ₀
Note: n = 7 to 0
Bus cycle
T₁
T₂
T₃
External address in area n
Valid
Valid
Valid
Valid
Figure 6-8 Bus Control Signal Timing for 16-Bit, Three-State-Access Area (3)
(Word Access)
129