h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 103

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

2.9.4
The on-chip supporting modules (internal I/O register 3) are accessed in three states. The data bus
is 8 bits wide. Figure 2.21 shows the access timing fo the on-chip supporting modules (internal I/O
register 3). Figure 2.22 shows the pin states.
On-Chip Supporting Module Access Timing (Internal I/O Register 3)
Address bus
AS
RD
HWR, LWR
Data bus
Figure 2.20 Pin States during On-Chip Supporting Module
(Internal I/O Register 1 and 2) Access
T1
High impedance
Unchanged
Bus cycle
High
High
High
Rev. 3.00 Jan 18, 2006 page 75 of 1044
T2
REJ09B0280-0300
Section 2 CPU