Datasheet

Rev.6.00 Oct.28.2004 page 284 of 1016
REJ09B0138-0600H
Pin Selection Method and Pin Functions
P2
4
/PO4/TIOCA4/
TMRI1
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, 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 TIOCA4 output P2
4
input
P2
4
output
PO4
output
TIOCA4 input *
1
TMRI1 input
Note: 1. TIOCA4 input when MD3 to MD0 = B'0000, B'01××, and IOA3 to
IOA0 = B'10××.
TPU Channel
4 Setting (2) (1) (2) (1) (1) (2)
MD3 to MD0 B'0000, B'01×× B'001× B'0010 B'0011
IOA3 to IOA0 B'0000
B'0100
B'1×××
B'0001 to
B'0011
B'0101 to
B'0111
B'××00 Other than B'××00
CCLR1,
CCLR0
— — — — Other
than B'01
B'01
Output
function
— Output
compare
output
— PWM
mode 1
output*
2
PWM
mode 2
output
—
×: Don’t care
Note: 2. TIOCB4 output is disabled.