h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 206

• Manufacturer Part Number: h8s-2138
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 6 Bus Controller
The settings after a reset are: 3-state access, insertion of 3 program wait states, and WAIT input
disabled.
Rev. 4.00 Jun 06, 2006 page 152 of 1004
REJ09B0301-0400
Read
Write
Note:
AS (IOSE = 0)
indicates the timing of WAIT pin sampling using the
Address bus
Data bus
Data bus
WAIT
WR
RD
Figure 6.7 Example of Wait State Insertion Timing
T
1
By program wait
T
2
T
w
Write data
clock.
By WAIT pin
T
w
T
w
Read data
T
3