Datasheet

Section 9 I/O Ports
Rev.6.00 Sep. 27, 2007 Page 372 of 1268
REJ09B0220-0600
Pin Selection Method and Pin Functions
P2
1
/PO
1
/TIOCB
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 IOB3 to IOB0
in TIOR3H, and bits CCLR2 to CCLR0 in TCR3), bit NDER1 in NDERL, and bit
P21DDR.
TPU Channel
3 Setting Table Below (1) Table Below (2)
P21DDR — 0 1 1
NDER1 — — 0 1
Pin function TIOCB
3
output P2
1
input
P2
1
output
PO
1
output
TIOCB
3
input
*
Note: * TIOCB
3
input when MD3 to MD0 = B'0000, and IOB3 to IOB0 = B'10xx.
TPU Channel
3 Setting (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
—
x: Don’t care