LC87F7DC8A_10 Datasheet, PDF (11/26 Pages) Sanyo Semicon Device – FROM 128K byte, RAM 4K byte on-chip 8-bit 1-chip Microcontroller

LC87F7DC8A
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.
• Shared pins
P70: INT0 input/HOLD release input/timer 0L capture input/watchdog timer output
P71: INT1 input/HOLD release input/timer 0H capture input
P72: INT2 input/HOLD release input/timer 0 event input/timer 0L capture input/
high speed clock counter input
P73: INT3 input (with noise filter)/timer 0 event input/timer 0H capture input/
remote control receiver input
AD converter input ports: AN8 (P70), AN9 (P71)
Interrupt acknowledge type
Rising
Falling
Rising &
Falling
H level
L level
INT0
enable
enable
disable
enable
enable
INT1
INT2
INT3
enable
enable
enable
enable
enable
enable
disable
enable
enable
enable
disable
disable
enable
disable
disable
Port 8
P80 to P87
S0/PA0 to
S7/PA7
S8/PB0 to
S15/PB7
S16/PC0 to
S23/PC7
S24/PD0 to
S31/PD7
S32/PE0 to
S39/PE7
S40/PF0 to
S47/PF7
COM0/PL0 to
COM3/PL3
V1/PL4 to
V3/PL6
RES
XT1
XT2
CF1
CF2
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Input
Input
I/O
Input
Output
• 8-bit I/O port
• I/O specifiable in 1-bit units
• Shared pins
AD converter input ports: AN0 to AN7
Small signal detector input port: MICIN (P87)
• Segment output for LCD
• Can be used as general-purpose I/O port (PA)
• Segment output for LCD
• Can be used as general-purpose I/O port (PB)
• Segment output for LCD
• Can be used as general-purpose I/O port (PC)
• Segment output for LCD
• Can be used as general-purpose I/O port (PD)
• Segment output for LCD
• Can be used as general-purpose I/O port (PE)
• Segment output for LCD
• Can be used as general-purpose I/O port (PF)
PF6: INT6 input
PF7: INT7 input
• Common output for LCD
• Can be used as general-purpose input port (PL)
• LCD output bias power supply
• Can be used as general-purpose input port (PL)
• Shared pins
AD converter input ports: AN12 (V1) to AN14 (V3)
On-chip debugger pins: DBGP0 (V1) to DBGP2 (V3)
Reset pin
• 32.768kHz crystal oscillator input pin
• Shared pins
General-purpose input port
AD converter input port: AN10
Must be connected to VDD1 if not to be used.
• 32.768kHz crystal oscillator output pin
• Shared pins
General-purpose I/O port
AD converter input port: AN11
Must be set for oscillation and kept open if not to be used.
Ceramic resonator input pin
Ceramic resonator output pin
Option
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No.A1156-11/26