h8s-2138 Renesas Electronics Corporation., h8s-2138 Datasheet - Page 123

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

2.9.4
The external address space is accessed with an 8-bit data bus width in a two-state or three-state
bus cycle. In three-state access, wait states can be inserted. For further details, refer to section 6,
Bus Controller.
External Address Space Access Timing
Address bus
AS
RD
WR
Data bus
Figure 2.20 Pin States during On-Chip Supporting Module Access
T1
High impedance
Unchanged
Bus cycle
High
High
High
Rev. 4.00 Jun 06, 2006 page 69 of 1004
T2
REJ09B0301-0400
Section 2 CPU