227
Pin
Selection Method and Pin Functions
P14/PO12/
TIOCA1/
IRQ0
The pin function is switched as shown below according to the combination of
the TPU channel 1 setting (by bits MD3 to MD0 in TMDR1, bits IOA3 to IOA0
in TIOR1, and bits CCLR1 and CCLR0 in TCR1), bit NDER12 in NDERH, and
bit P14DDR.
TPU Channel
1 Setting
Table Below (1)
Table Below (2)
P14DDR
—
0
1
1
NDER12
—
—
0
1
Pin function
TIOCA1 output
P14
input
P14
output
PO12
output
TIOCA1 input
*
1
IRQ0
input
TPU Channel
1 Setting
(2)
(1)
(2)
(1)
(1)
(2)
MD3 to MD0
B'0000, B'01xx
B'001x
B'0010
B'0011
IOA3 to IOA0
B'0000
B'0100
B'1xxx
B'0001 to
B'0011
B'0101 to
B'0111
B'xx00
Other
than
B'xx00
Other than B'xx00
CCLR1,
CCLR0
—
—
—
—
Other
than B'01
B'01
Output
function
—
Output
compare
output
—
PWM
mode 1
output
*
2
PWM
mode 2
output
—
x: Don't care
Notes:
*
1 TIOCA1 input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 to
IOA0 = B'10xx.
*
2 TIOCB1 output is disabled.
Summary of Contents for H8S/2645
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Page 837: ...805 A 2 Instruction Codes Table A 2 shows the instruction codes ...
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