SH7014 Datasheet, PDF (745/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

Appendix C Pin States
Table C.4 Pin Settings for Multiplex I/O Space
Multiplex I/O Space
16-Bit Space
Pin Name
8-Bit Space Upper Byte
Lower Byte
CS0 to CS2
H
H
H
CS3
L
L
L
RAS*¹
H
H
H
CASH*²
H
H
H
CASL*²
H
H
H
RDWR
H
H
H
AH
Valid
Valid
Valid
RD
RL
L
L
WH
H
H
WRH
RH
H
H
WH
L
H
WRL
RH
H
H
WL
H
L
A21 to A0
Address
Address
Address
D15 to D8
Hi-Z
Address/Data
Address
D7 to D0
Address/Data Address
Address/Data
Legend:
R: Read
W: Write
Valid: High output in accordance with AH timing
Notes: 1. L asserted in RAS down mode or refresh mode.
2. L asserted in refresh mode.
Word/Longword
H
L
H
H
H
H
Valid
L
H
H
L
H
L
Address
Address/Data
Address/Data
Rev.5.00 Sep. 27, 2007 Page 711 of 716
REJ09B0398-0500