HD64F2357F20V Datasheet, PDF (167/1049 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-chip Microcomputer H8S Family / H8S/2300 Series

Figure 6-14 shows an example of wait state insertion timing.
By program wait By WAIT pin
T₁
T₂
T_w
T_w
T_w
T₃
ø
WAIT
Address bus
AS
Read
RD
Data bus
Read data
Write
HWR, LWR
Data bus
Write data
Note: indicates the timing of WAIT pin sampling.
Figure 6-14 Example of Wait State Insertion Timing
The settings after a power-on reset are: 3-state access, 3 program wait state insertion, and WAIT input disabled. When a
manual reset* is performed, the contents of bus controller registers are retained, and the wait control settings remain the
same as before the reset.
Note: * Manual reset is only supported in the H8S/2357 ZTAT.
Rev.6.00 Oct.28.2004 page 137 of 1016
REJ09B0138-0600H