H8S2368 Datasheet, PDF (452/1037 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series

Section 9 I/O Ports
• PG4/CS4/BREQO
The pin function is switched as shown below according to the operating mode, bit EXPE, bit
BRLE, bit BREQO, bit CS4E and bit PG4DDR.
Operating
mode
1, 2, 4
7
EXPE
BRLE
−
0
1
0
1
−
0
1
BREQ0E
−
0
1
−
−
0
1
CS4E
0
1
0
1
−
−
0
1
0
1
1
PG4DDR ^{0 1 0 1 0 1 0 1}
−
0 1 0 10 1 0 10 1
−
Pin
PG4 PG4 PG4 CS4 PG4 PG4 PG4 CS4 BREQO PG4 PG4 PG4 PG4 PG4 CS4 PG4 PG4 PG4 CS4 BREQO
function input output input output input output input output output input output input output input output input output input output output
• PG3/CS3/RAS3, PG2/CS2/RAS2
The pin function is switched as shown below according to the operating mode, bit EXPE, bit
PGnDDR, bit CSnE, and bits RMTS2 to RMTS0.
Operating
mode
1, 2, 4
EXPE
—
CSnE
0
1
RMTS2 to
—
Area n is in
Area n is in
RMTS0
normal space DRAM
space
PGnDDR 0
1
0
1
—
Pin
function
PGn PGn PGn CSn
input output input output
RASn
output
7
0
—
—
0
PGn
input
1
PGn
output
1
0
1
—
Area n is in
Area n is in
normal space DRAM
space
0
1
0
1
—
PGn
input
PGn
output
PGn
input
CSn RASn
output output
n = 2 or 3
Rev. 5.00 Aug 02, 2006 page 398 of 980
REJ09B0050-0500