Hitachi H8S/2378, H8S/2378R Series Hardware Manual page 472

• P20/PO0/TIOCA3/(,54;,
The pin function is switched as shown below according to the combination of the TPU channel
3 settings (by bits MD3 to MD0 in TMDR_3, bits IOA3 to IOA0 in TIORH_3, and bits
CCLR2 to CCLR0 in TCR_3), bit NDER0 in NDERL, bit P20DDR, and bit ITS8 in ITSR.
TPU channel 3 (1) in table
settings
P20DDR
NDER0
Pin function TIOCA3 output
Notes: 1. TIOCA3 input when MD3 to MD0 = B'0000 and IOA3 to IOA0 = B'10xx.
2. ,54; input when ITS8 = 1.
TPU channel 3 (2)
settings
MD3 to MD0
IOA3 to IOA0 B'0000
B'0100
B'1xxx
CCLR2 to —
CCLR0
Output function —
x: Don't care
Note: 3. TIOCB3 output disabled.
Rev. 1.0, 09/01, page 428 of 904
below
— 0
— —
P20 input
,54; interrupt input*
(1)
B'0001 to B'01xx
B'0001 to B'0011
B'0101 to B'0111
—
Output compare
output
(2) in table below
1
0
P20 output
1
TIOCA3 input*
2
(2) (1)
B'001x B'0010
B'xx00 Other Other than B'xx00
than
B'xx00
— — Other
than
B'001
3
— PWM* PWM
mode 1 mode 2
output output
1
1
PO0 output
(1) (2)
B'0011
B'001
—