h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 231

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

8.3.4
To ensure normal access to external space, P27 should not be set as an on-chip peripheral module
output pin when port 2 pins are used as address output pins.
Note: n = 6 to 4
Operating
Mode
CBOE
P27DDR
OE15
IOSE
Pin
Function
Operating
Mode
P2nDDR
OEm
IOSE
Pin Function
P27/A15/PW15/CBLANK
The pin function is switched as shown below according to the combination of the IOSE bit in
SYSCR, the CBOE bit in TCONRO of timer connection, the OE15 bit in PWOERB of PWM,
the P27DDR bit, and operating mode.
P26/A14/PW14, P25/A13/PW13, P24/A12/PW12
The pin function is switched as shown below according to the combination of the IOSE bit in
SYSCR, the OEm bit in PWOERB of PWM, the P2nDDR bit, and operating mode.
m = 14 to 12
Pin Functions
Mode 1
output
A15
pin
—
—
—
—
A14 to
output
Mode
pins
A12
—
—
—
1
input
P27
pin
—
—
0
P24 input
P26 to
pins
output
—
—
A15
0
pin
0
Mode 2, 3 (EXPE = 1)
Mode 2, 3 (EXPE = 1)
0
0
output
A14 to
output
P27
pin
A12
pins
1
1
0
0
output
PW15
pin
—
1
P26 to
output
pins
P24
1
1
CBLANK
output
Rev. 3.00 Mar 21, 2006 page 177 of 788
pin
—
—
—
1
PW14 to
output
PW12
pins
—
1
input
P27
pin
—
—
0
P26 to
input
pins
P24
Mode 2, 3 (EXPE = 0)
—
—
0
Mode 2, 3 (EXPE = 0)
output
P27
pin
—
0
0
Section 8 I/O Ports
REJ09B0300-0300
1
P26 to
output
pins
P24
output
PW15
0
1
pin
—
1
1
PW14 to
output
PW12
CBLANK
output
pins
—
pin
1
—
—
—
1