Datasheet

Section 10 I/O Ports
Page 628 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
• PB0/A8/TIOCA6
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, TPU channel 6 settings (by bits MD3 to MD0 in TMDR_6, bits IOA3 to
IOA0 in TIORH_6, and bits CCLR2 to CCLR0 in TCR_6), and bit PB0DDR.
Operating
mode
1, 2 4 3, 7 (EXPE = 1) 3, 7 (EXPE = 0)
TPU channel
6 settings
⎯ ⎯ (1) in table
below
(2) in table below
PB0DDR ⎯ 0 1 ⎯ 0 1
PB0 input PB0 output Pin function A8 output PB0 input A8 output TIOCA6
output
TIOCA6 input*
1
TPU channel 6
settings
(2) (1) (2) (1) (1) (2)
MD3 to MD0 B'0000 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
CCLR2 to
CCLR0
⎯ ⎯ ⎯ ⎯ Other than
B'001
B'001
Output function ⎯ Output
compare
output
⎯ PWM*
2
mode
1 output
PWM mode
2 output
⎯
[Legend]
x: Don't care
Notes: 1. TIOCC6 input when MD3 to MD0 = B'0000 and IOA3 to IOA0 = B'10xx.
2. TIOCB6 output disabled.