Hitachi H8S/2678 Series Reference Manual page 225

Pin Selection Method and Pin Functions
P25/PO5/ The pin function is switched as shown below according to the combination of the
TIOCB4/ TPU channel 4 settings (by bits MD3 to MD0 in TMDR4, bits IOB3 to IOB0 in
IRQ13
TIOR4, and bits CCLR1 and CCLR0 in TCR4), bit NDER5 in NDERL, bit
P25DDR, and bit ITS13 in ITSR.
TPU channel 4
settings
P25DDR
NDER5
Pin function
Notes: 1. TIOCB4 input when MD3 to MD0 = B'0000 or B'01xx and IOB3 to IOB0 =
TPU channel 5
settings
MD3 to MD0
IOB3 to IOB0
CCLR1, CCLR0
Output function
208
(1) in table
below
—
—
TIOCB4 output
B'10xx.
2. IRQ13 input when ITS13 = 1.
(2)
B'0000 to B'0011
B'0000 B'0001 to B'0011
B'0100 B'0101 to B'0111
B'1xxx
—
—
0
—
P25 input
IRQ13 interrupt input pin*
(1) (2)
B'0010
—
— —
Output compare —
output
(2) in table below
1
0
P25 output PO5 output
1
TIOCB4 input*
2
(2) (1)
B'0011
B'xx00 Other than B'xx00
— Other
than
B'10
— PWM
mode 2
output
1
1
(2)
B'10
—
x: Don't care