Datasheet

Section 9 I/O Ports
Rev.6.00 Sep. 27, 2007 Page 369 of 1268
REJ09B0220-0600
Pin Selection Method and Pin Functions
P2
4
/PO
4
/TIOCA
4
/
TMRI
1
This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and
CCLR0 in TCR1 are both set to 1.
The pin function is switched as shown below according to the combination of
the TPU channel 4 setting (by bits MD3 to MD0 in TMDR4, bits IOA3 to IOA0
in TIOR4, and bits CCLR1 and CCLR0 in TCR4), bit NDER4 in NDERL, and bit
P24DDR.
TPU Channel
4 Setting Table Below (1) Table Below (2)
P24DDR — 0 1 1
NDER4 — — 0 1
Pin function TIOCA
4
output P2
4
input
P2
4
output
PO
4
output
TIOCA
4
input
*
1
TMRI
1
input
TPU Channel
4 Setting (2) (1) (2) (1) (1) (2)
MD3 to MD0 B'0000, B'01xx 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
CCLR1,
CCLR0
— — — — Other
than B'01
B'01
Output
function
— Output
compare
output
— PWM
mode 1
output
*
2
PWM
mode 2
output
—
x: Don’t care
Notes: 1. TIOCA
4
input when MD3 to MD0 = B'0000 or B'01xx, and IOA3 to
IOA0 = B'10xx.
2. TIOCB
4
output is disabled.