Datasheet

Section 10 I/O Ports
Rev.7.00 Mar. 18, 2009 page 477 of 1136
REJ09B0109-0700
• P24/PO4/TIOCA4/RxD4/(IRQ12)
The pin function is switched as shown below according to the combination of the TPU channel
4 settings (by bits MD3 to MD0 in TMDR_4, bits IOA3 to IOA0 in TIOR_4, and bits CCLR1
and CCLR0 in TCR_4), bit NDER4 in NDERL, bit RE in SCR of SCI_4, bit P24DDR, and bit
ITS12 in ITSR.
RE 0 1
TPU channel 4
settings
(1) in table
below
(2) in table below ⎯
P24DDR ⎯ 0 1 1 ⎯
NDER4 ⎯ ⎯ 0 1 ⎯
P24 input P24 output PO4 output Pin function TIOCA4 output
TIOCA4 input
*
1
RXD4 input
pin
IRQ12 interrupt input
*
2
TPU channel 4
settings
(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
Other than B'××00
CCLR1, CCLR0 ⎯ ⎯ ⎯ ⎯ Other
than
B'01
B'01
Output function ⎯ Output
compare
output
⎯ PWM
*
3
mode 1
output
PWM mode
2 output
⎯
Legend:
×: Don’t care
Notes: 1. TIOCA4 input when MD3 to MD0 = B'0000 or B'01×× and IOA3 to IOA0 = B'10××.
2. IRQ12 input when ITS12 = 1.
3. TIOCB4 output disabled.