208
Pin
Selection Method and Pin Functions
P25/PO5/
TIOCB4/
IRQ13
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, bits IOB3 to IOB0 in
TIOR4, and bits CCLR1 and CCLR0 in TCR4), bit NDER5 in NDERL, bit
P25DDR, and bit ITS13 in ITSR.
TPU channel 4
settings
(1) in table
below
(2) in table below
P25DDR
—
0
1
1
NDER5
—
—
0
1
Pin function
TIOCB4 output
P25 input
P25 output
PO5 output
TIOCB4 input
*
1
IRQ13
interrupt input pin
*
2
Notes: 1. TIOCB4 input when MD3 to MD0 = B'0000 or B'01xx and IOB3 to IOB0 =
B'10xx.
2.
IRQ13
input when ITS13 = 1.
TPU channel 5
settings
(2)
(1)
(2)
(2)
(1)
(2)
MD3 to MD0
B'0000 to B'0011
B'0010
B'0011
IOB3 to IOB0
B'0000
B'0100
B'1xxx
B'0001 to B'0011
B'0101 to B'0111
—
B'xx00
Other than B'xx00
CCLR1, CCLR0
—
—
—
—
Other
than
B'10
B'10
Output function
—
Output compare
output
—
—
PWM
mode 2
output
—
x: Don’t care
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