Technical information

5
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Function
• 8-bit I/O port
• CMOS compatible input level
• CMOS 3-state output structure
• I/O direction register allows each pin to be individually
programmed as either input or output.
• Pull-up control is enabled.
• 2-bit I/O port
• CMOS compatible input level
• CMOS 3-state output structure
• I/O direction register allows each pin to be individually
programmed as either input or output.
• Pull-up control is enabled.
• 2-bit I/O port
• CMOS compatible input level
• CMOS 3-state output structure
• I/O direction register allows each pin to be individually
programmed as either input or output.
• Pull-up control is enabled.
Pin
P50/SIN2,
P51/SOUT2,
P52/SCLK2,
P53/SRDY2
P54/CNTR0,
P55/CNTR1
P56/TOUT
P57/INT2
P6 0 /INT 3 /RTP 0
P61/RTP1
P70/XCOUT,
P71/XCIN
PIN DESCRIPTION
Name
I/O port P5
I/O port P6
I/O port P7
Function except a port function
• Serial I/O2 function pins
• Timer function pins
• Timer output pin
• Interrupt input pin
• Interrupt input pins(P60)
• Real time port function pin
• Sub-clock generating circuit input
pins
(Connect a resonator. External clock
cannot be used.)