209
Pin
Selection Method and Pin Functions
P24/PO4/
TIOCA4/
IRQ12
The pin function is switched as shown below according to the combination of the
TPU channel 4 settings (by bits MD3 to MD0 in TMDR4 and bits IOA3 to IOA0 in
TIOR4), bit NDER4 in NDERL, bit P24DDR, and bit ITS12 in ITSR.
TPU channel 4
settings
(1) in table
below
(2) in table below
P24DDR
—
0
1
1
NDER4
—
—
0
1
Pin function
TIOCA4 output
P24 input
P24 output
PO4 output
TIOCA4 input
*
1
IRQ12
interrupt input pin
*
2
Notes: 1. TIOCA4 input when MD3 to MD0 = B'0000 or B'01xx and IOA3 to IOA0 =
B'10xx.
2.
IRQ12
input when ITS12 = 1.
TPU channel 4
settings
(2)
(1)
(2)
(1)
(1)
(2)
MD3 to MD0
B'0001 to 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'10
B'10
Output function
—
Output compare
output
—
PWM
*
3
mode 1
output
PWM
mode 2
output
—
x: Don’t care
Note:
3. TIOCB4 output disabled.
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