LC87F2J32A Datasheet, PDF (10/30 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller

LC87F2J32A
Continued from preceding page.
Pin Name
I/O
Description
Port 7
P70 to P73
I/O
• 4-bit I/O port
• I/O specifiable in 1-bit units
• Pull-up resistors can be turned on and off in 1-bit units.
• Pin functions
P70: INT0 input/HOLD reset input/timer 0L capture input/watchdog timer output
P71: INT1 input/HOLD reset input/timer 0H capture input
P72: INT2 input HOLD reset input/timer 0 event input/timer 0L capture input
P73: INT3 input (with noise filter)/timer 0 event input/timer 0H capture input
P70(AN8), P71(AN9) : AD converter input
Interrupt acknowledge type
Rising
Falling
Rising &
Falling
H level
INT0
INT1
INT2
enable
enable
enable
enable
enable
enable
disable
disable
enable
enable
enable
disable
INT3
enable
enable
enable
disable
L level
enable
enable
disable
disable
Option
No
PWM0, PWM1
I/O
• PWM0 and PWM1 output ports
No
• General-purpose I/O available
RES
I/O
External reset Input/internal reset output
No
XT1
Input • 32.768kHz crystal oscillator input pin
No
• Shared pins
General-purpose input port
AD converter input port: AN10
XT2
I/O
• 32.768kHz crystal oscillator output pin
No
• Shared pins
General-purpose I/O port
AD converter input port: AN11
CF1
Input Ceramic resonator input pin
No
• Shared pins
General-purpose input port
AD converter input port: AN12
CF2
Output Ceramic resonator output pin
No
• Shared pins
General-purpose I/O port
AD converter input port: AN13
On-chip Debugger Pin Connection Requirements
For the treatment of the on-chip debugger pins, refer to the separately available documents entitled “RD87 On-chip
Debugger Installation Manual”
Recommended Unused Pin Connections
Port Name
P00 to P07
P10 to P17
P20 to P21
P30 to P36
P70 to P73
PWM0,PWM1
XT1
XT2
CF1
CF2
Recommended Unused Pin Connections
Board
Software
Open
Output low
Open
Output low
Open
Output low
Open
Output low
Open
Output low
Open
Output low
Pulled low with a 100kΩ resistor or less
General-purpose input port
Open
Output low
Pulled low with a 100kΩ resistor or less
General-purpose input port
Open
Output low
No.A1384-10/30