HD6417034B RENESAS [Renesas Technology Corp], HD6417034B Datasheet - Page 678

• Manufacturer Part Number: HD6417034B
• Description: 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Appendix B Pin States
The following table shows the states of bus control pins and external bus pins in accesses of
various address spaces.
Table B.2
Pin Name
CS7–CS0
RAS
CASH
CASL
AH
RD
WRH/LBS
WRL/WR
A0/HBS
A21–A1
AD15–AD8
AD7–AD0
DPH
DPL
R: Read
W: Write
Rev. 7.00 Jan 31, 2006 page 652 of 658
REJ09B0272-0700
Pin States in Address Space Accesses
R
W
R
W
R
W
On-Chip
ROM Space
High
High
High
High
Low
High
—
High
—
High
—
A0
Address
High-Z
High-Z
High-Z
High-Z
On-Chip
RAM Space
High
High
High
High
Low
High
High
High
High
High
High
A0
Address
High-Z
High-Z
High-Z
High-Z
8-Bit Space Upper
High
High
High
High
Low
High
High
High
High
High
High
A0
Address
High-Z
High-Z
High-Z
High-Z
On-Chip Peripheral Modules
Byte
High
High
High
High
Low
High
High
High
High
High
High
A0
Address
High-Z
High-Z
High-Z
High-Z
16-Bit Space
Lower
Byte
High
High
High
High
Low
High
High
High
High
High
High
A0
Address
High-Z
High-Z
High-Z
High-Z
Word
High
High
High
High
Low
High
High
High
High
High
High
A0
Address
High-Z
High-Z
High-Z
High-Z