Datasheet

Section 9 I/O Ports
Rev.6.00 Sep. 27, 2007 Page 368 of 1268
REJ09B0220-0600
Pin Selection Method and Pin Functions
P2
5
/PO
5
/TIOCB
4
/
TMCI
1
This pin is used as the 8-bit timer external clock input pin when an external
clock is selected with bits CKS2 to CKS0 in TCR1.
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 IOB3 to IOB0
in TIOR4, and bits CCLR1 and CCLR0 in TCR4), bit NDER5 in NDERL, and bit
P25DDR.
TPU Channel
4 Setting Table Below (1) Table Below (2)
P25DDR — 0 1 1
NDER5 — — 0 1
Pin function TIOCB
4
output P2
5
input
P2
5
output
PO
5
output
TIOCB
4
input
*
TMCI
1
input
Note: * TIOCB
4
input when MD3 to MD0 = B'0000 or B'01xx, and IOB3 to IOB0
= B'10xx.
TPU Channel
4 Setting (2) (1) (2) (2) (1) (2)
MD3 to MD0 B'0000, B'01xx 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
CCLR1,
CCLR0
— — — — Other
than B'10
B'10
Output
function
— Output
compare
output
— — PWM
mode 2
output
—
x: Don’t care