HD64F7144F50V Datasheet, PDF (856/932 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

B. Pin States of Bus Related Signals
Table B.1 Pin States of Bus Related Signals (2)
Normal External Space
16-bit Space
Pin Name
8-bit Space
Upper Byte
Lower Byte
CS0 to CS7
RD
R
Enabled
L
Enabled
L
Enabled
L
WH
H
H
WRHH
RH
H
H
WH
H
H
WRHL
RH
H
H
WH
H
H
WRH
RH
H
H
WH
L
H
WRL
RH
H
H
WL
H
L
A21 to A0
Address
Address
Address
D31 to D24
Hi-Z
Hi-Z
Hi-Z
D23 to D16
Hi-Z
Hi-Z
Hi-Z
D15 to D8
Hi-Z
Data
Hi-Z
D7 to D0
Data
Hi-Z
Data
[Legend]
R:
W:
Enabled:
Read
Write
Chip select signals corresponding to accessed areas = Low
The other chip select signals = High
Word/Longword
Enabled
L
H
H
H
H
H
H
L
H
L
Address
Hi-Z
Hi-Z
Data
Data
Rev.4.00 Mar. 27, 2008 Page 810 of 882
REJ09B0108-0400