Datasheet

Section 10 I/O Ports
R01UH0309EJ0500 Rev. 5.00 Page 639 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
• PC1/A1/TIOCB9
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, TPU channel 9 settings (by bits MD3 to MD0 in TMDR_9, bits IOB3 to
IOB0 in TIORH_9, and bits CCLR2 to CCLR0 in TCR_9), and bit PC1DDR.
Operating
mode
1, 2 4 3, 7 (EXPE = 1) 3, 7 (EXPE = 0)
TPU channel
9 settings
⎯ ⎯ (1) in table
below
(2) in table below
PC1DDR ⎯ 0 1 ⎯ 0 1
PC1 input PC1 output Pin function A1 output PC1 input A1 output TIOCB9
output
TIOCB9 input*
TPU channel 9
settings
(2) (1) (2) (2) (1) (2)
MD3 to MD0 B'0000 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
CCLR2 to
CCLR0
⎯ ⎯ ⎯ ⎯ Other than
B'010
B'010
Output function ⎯ Output
compare
output
⎯ ⎯ PWM mode
2 output
⎯
[Legend]
x: Don't care
Note: * TIOCB9 input when MD3 to MD0 = B'0000 and IOB3 to IOB0 = B'10xx.