Datasheet

Section 8 I/O Ports
Rev. 3.00 Sep. 28, 2009 Page 126 of 710
REJ09B0384-0300
Port Description Single-Chip Mode I/O Status
Port 3 General I/O port also
functioning as de-
bounce input
P37/ExDB7
P36/ExDB6
P35/ExDB5
P34/ExDB4
P33/ExDB3
P32/ExDB2
P31/ExDB1
P30/ExDB0
Built-in input
pull-up MOS
Port 4 General I/O port also
functioning as
interrupt input, retain
state output, and de-
bounce input
P47/IRQ7/RS7/DB7/HC7
P46/IRQ6/RS6/DB6/HC6
P45/IRQ5/RS5/DB5/HC5
P44/IRQ4/RS4/DB4/HC4
P43/IRQ3/RS3/HC3
P42/IRQ2/RS2/HC2
P41/IRQ1/RS1/HC1
P40/IRQ0/RS0/HC0
Built-in input
pull-up MOS
(sink current
12 mA)
Port 5 General I/O port also
functioning as
interrupt input, system
clock output, PWMX
output, and SCI_1
input/output
P57/IRQ15/PWX1
P56/IRQ14/PWX0/φ/EXCL
P53/IRQ11/RxD1
P52/IRQ10/TxD1
Port 6 General I/O port P63
P62
P61
P60
Built-in input
pull-up MOS
Port 7 General I/O port also
functioning as A/D
converter analog input
and interrupt input
P77/ExIRQ7/AN7
P76/ExIRQ6/AN6
P75/ExIRQ5/AN5
P74/ExIRQ4/AN4
P73/ExIRQ3/AN3
P72/ExIRQ2/AN2
P71/EXIRQ1/AN1
P70/EXIRQ0/AN0