D12320VF25IV Datasheet, PDF (472/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
Pin
PG1/CS3
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode
and bits PG1DDR and CS25E.
Operating
Mode
Modes 4 to 6
Mode 7
PG1DDR
0
1
0
1
CS25E
Pin function
—
PG1 input
pin
0
1
PG1 output CS3 output
pin
pin
—
PG1 input
pin
—
PG1 output
pin
PG0/CAS^*
The pin function is switched as shown below according to the combination of
the operating mode and bits RMTS2 to RMTS0^* and PG0DDR.
Operating
Mode
Modes 4 to 6
Mode 7
RMTS2 to
B'000,
B'001 to
—
RMTS0^*
B'100 to B'111
B'011
PG0DDR
0
1
—
0
1
Pin function
PG0
input
pin
PG0
output
pin
CAS
output
pin^*
PG0
input
pin
PG0
output
pin
Note: * The DRAM interface and CAS are not supported in the H8S/2321.
Rev.6.00 Sep. 27, 2007 Page 440 of 1268
REJ09B0220-0600