Datasheet

Section 9 I/O Ports
Rev.6.00 Sep. 27, 2007 Page 373 of 1268
REJ09B0220-0600
Pin Selection Method and Pin Functions
P2
0
/PO
0
/TIOCA
3
The pin function is switched as shown below according to the combination of
the TPU channel 3 setting (by bits MD3 to MD0 in TMDR3, bits IOA3 to IOA0
in TIOR3H, and bits CCLR2 to CCLR0 in TCR3), bit NDER0 in NDERL, and bit
P20DDR.
TPU Channel
3 Setting Table Below (1) Table Below (2)
P20DDR — 0 1 1
NDER0 — — 0 1
Pin function TIOCA
3
output P2
0
input
P2
0
output
PO
0
output
TIOCA
3
input
*
1
TPU Channel
3 Setting (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
mode 1
output
*
2
PWM
mode 2
output
—
x: Don’t care
Notes: 1. TIOCA
3
input when MD3 to MD0 = B'0000, and IOA3 to IOA0 =
B'10xx.
2. TIOCB
3
output is disabled.