Chapter 1
Overview
I - 16 Pin Description
Table:1.3.2 General-purpose Port Function Pin
Pin
name
Function
Input/
Output
Output
drive strength
selectable
Description
P00 TM9IOC
Input/
Output
Yes Port 0
-At each port, the I/O direction and the pull-up resistor
connection is controlled individually.
-At LSI reset, each pin is set to input mode and the pull-up
resistor is not connected.
-The drive strength of output Nch transistor can be
changed.
P01 TM4IOB Yes
P02 TM2IOB/TM8IOC/BUZB Yes
P03 TM0IOB/TM7IOC/NBUZB Yes
P04 SBO3A/SDA3A/TM7IOA Yes
P05 SBT3A/SCL3A/TM0IOA/TM2IOA/CLKOUTA Yes
P06 SBI3A/TM8IOB Yes
P07 SBCS3A/TM9IOA Yes
P10 AN0/IRQ0A/KEY0A
Input/
Output
No Port 1
-At each port, the I/O direction and the pull-up resistor
connection is controlled individually.
-At LSI reset, each pin is set to input mode and the pull-up
resistor is not connected.
P11 AN1/IRQ1A/KEY1A No
P12 AN2/IRQ4C/KEY2A No
P13 AN3/IRQ5C/KEY3A No
P14 AN4/IRQ4A/KEY4A/OCD_CLK No
P15 AN5/IRQ5A/KEY5A/OCD_DATA No
P16 AN6/IRQ6A/KEY6A No
P17 AN7/KEY7A No
P20 SEG42/TM1IOB/TM9IOB
Input/
Output
Yes Port 2
-At each port, the I/O direction and the pull-up resistor
connection is controlled individually.
-At LSI reset, each pin is set to input mode and the pull-up
resistor is not connected.
-The drive strength of output Nch transistor can be
changed.
P21 SEG41/TM5IOA Yes
P22 SEG40/SBI2B Yes
P23 SEG39/SBO2B/SDA2B Yes
P24 SEG38/SBT2B/SCL2B Yes
P25 SEG37/SBCS2B Yes
P26 SEG36/SBI1A/RXD1A Yes
P27 NRST Input/
Output
No Port 2
-LSI is reset by setting P2OUT.P2OUT7 to "0".
P30 SEG35/SBO1A/TXD1A
Input/
Output
Yes Port 3
-At each port, the I/O direction and the pull-up resistor
connection is controlled individually.
-At LSI reset, each pin is set to input mode and the pull-up
resistor is not connected.
-The drive strength of output Nch transistor can be
changed.
P31 SEG34/SBT1A Yes
P32 SEG33/SBCS1A Yes
P33 SEG32/BUZA Yes
P34 SEG31/TM4IOA/TM7IOB/NBUZA Yes
P35 SEG30/SBI0B/RXD0B Yes
P36 SEG29/SBO0B/TXD0B Yes
P37 SEG28/SBT0B Yes