SH7144_08 Datasheet, PDF (855/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

B. Pin States of Bus Related Signals
Table B.1 Pin States of Bus Related Signals (3)
Normal External Space
32-bit Space
Pin Name
CS0 to CS7
RD
R
Most
Significant
Byte
Enabled
L
Second
Byte
Enabled
L
Third
Byte
Enabled
L
Least
Significant
Byte
Enabled
L
Upper
Word
Enabled
L
WH
H
H
H
H
WRHH
RH
H
H
H
H
WL
H
H
H
L
WRHL
RH
H
H
H
H
WH
L
H
H
L
WRH
RH
H
H
H
H
WH
H
L
H
H
WRL
RH
H
H
H
H
WH
H
H
L
H
A21 to A0
Address Address Address Address Address
D31 to D24
Data
Hi-Z
Hi-Z
Hi-Z
Data
D23 to D16
Hi-Z
Data
Hi-Z
Hi-Z
Data
D15 to D8
Hi-Z
Hi-Z
Data
Hi-Z
Hi-Z
D7 to D0
[Legend]
R:
W:
Enabled:
Hi-Z
Hi-Z
Hi-Z
Data
Hi-Z
Read
Write
Chip select signals corresponding to accessed areas = Low
The other chip select signals = High
Lower Word Longword
Enabled
Enabled
L
L
H
H
H
H
H
L
H
H
H
L
H
H
L
L
H
H
L
L
Address
Address
Hi-Z
Data
Hi-Z
Data
Data
Data
Data
Data
Rev.4.00 Mar. 27, 2008 Page 811 of 882
REJ09B0108-0400