Datasheet

Section 10 I/O Ports
Rev.7.00 Mar. 18, 2009 page 539 of 1136
REJ09B0109-0700
• PG3/CS3/RAS3/CAS
*
The pin function is switched as shown below according to the operating mode, bit PG3DDR,
bit CS3E, and bits RMTS2 to RMTS0.
Operating
mode
1, 2, 4 7
EXPE ⎯ 0 1
CS3E 0 1 ⎯ 0 1
RMTS2 to
RMTS0
⎯ Area 3 is in
normal space
Area 3 is in
DRAM space
Areas 2 to 5
are in
synchronous
DRAM
*
space
⎯ ⎯ Area 3 is in
normal space
Area 3 is in
DRAM space
Areas 2 to 5
are in
synchronous
DRAM
*
space
PG3DDR 0 1 0 1 ⎯ ⎯ 0 1 0 1 0 1 ⎯ ⎯
Pin function PG3
input
PG3
output
PG3
input
CS3
output
RAS3 output CAS
*
output PG3
input
PG3
output
PG3
input
PG3
output
PG3
input
CS3
output
RAS3 output CAS
*
output
Note: * Not used in the H8S/2378 0.18μm F-ZTAT Group, H8S/2377, H8S/2375, and
H8S/2373.
• PG2/CS2/RAS2/RAS
The pin function is switched as shown below according to the operating mode, bit PG2DDR,
bit CS2E, and bits RMTS2 to RMTS0.
Operating
mode
1, 2, 4 7
EXPE ⎯ 0 1
CS2E 0 1 ⎯ 0 1
RMTS2 to
RMTS0
⎯ Area 2 is in
normal space
Area 2 is in
DRAM space
Areas 2 to 5
are in
synchronous
DRAM
*
space
⎯ ⎯ Area 2 is in
normal space
Area 2 is in
DRAM space
Areas 2 to 5
are in
synchronous
DRAM
*
space
PG2DDR 0 1 0 1 ⎯ ⎯ 0 1 0 1 0 1 ⎯ ⎯
Pin function PG2
input
PG2
output
PG2
input
CS2
output
RAS2 output RAS
*
output PG2
input
PG2
output
PG2
input
PG2
output
PG2
input
CS2
output
RAS2 output RAS
*
output
Note: * Not used in the H8S/2378 0.18μm F-ZTAT Group, H8S/2377, H8S/2375, and
H8S/2373.