HD64F2149 Datasheet, PDF (189/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

By program wait By WAIT pin
T₁
T₂
T_w
T_w
T_w
T₃
ø
WAIT
Address bus
AS (IOSE = 0)
Read
RD
Data bus
Read data
Write
HWR, LWR
Data bus
Write data
Note: indicates the timing of WAIT pin sampling using the ø clock.
Figure 6.13 Example of Wait State Insertion Timing
The settings after a reset are: 3-state access, insertion of 3 program wait states, and WAIT input
disabled.
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