M37920S4CGP Datasheet, PDF (5/39 Pages) Mitsubishi Electric Semiconductor – 16 BIT CMOS MICROCOMPUTER

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Pin
P70–P73
Name
I/O port P7
P80–P86
CS0
P91–P96
I/O port P8
Chip-select output
I/O port P9
P120–P122 I/O port P12
NMI
Non-maskable interrupt
MITSUBISHI MICROCOMPUTERS
M37920S4CGP
16-BIT CMOS MICROCOMPUTER
Input/
Output
I/O
Functions
Port P7 is a 4-bit I/O port. P72 and P73 also function as input pins for INT3 and
INT4. According to the software setting, these pins also function as input pins for
the A-D converter.
I/O Port P8 is a 7-bit I/O port. These pins also function as I/O pins for UART0, UART1.
Output This is an output pin for CS0.
I/O Port P9 is a 6-bit I/O port. According to the software setting, P91–P93 also funtion
as chip select output pins. While DRAM space is selected, P94–P96 function as
output pins for DRAM control signals.
I/O Port P12 is a 3-bit I/O port. These pins also functions as input pins for INT0, INT1,
INT2. According to software setting, these pins also function as input pins for timers
B0–B2.
Input This pin is for a non-maskable interrupt.
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