M37207MF datasheet(9/122 Pages) RENESAS

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MITSUBISHI MICROCOMPUTERS

M37207MF-XXXSP/FP, M37207M8-XXXSP

M37207EFSP/FP

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER

and ON-SCREEN DISPLAY CONTROLLER

Output port

CRT output

Timer 1 overflow

signal output

I/O port P6

PWM output

Input port P7

Clock input

for CRT

display

Clock output

for CRT

display

Analog input

HSYNC input

VSYNC input

Timing

output

DA output

Analog input

PIN DESCRIPTION (continued)

R/P52,

G/P53,

B/P54,

I/P55/TIM1

OVERFLOW,

OUT/P56

P60/PWM–

P67/PWM7

OSC1/P70/

AD4,

OSC2/P71/

AD5

HSYNC

VSYNC

D-A/AD3

Output

I/O

Output

Input

Output

Input

Output

Input

Ports P52–P56 are 5-bit output ports. The output structure is CMOS output.

Pins P52–P56 are also used as CRT output pins R, G, B, I, OUT respectively. The output structure

is CMOS output.

Pin P55 is also used as timer 1 overflow signal output pin TIM1 OVERFLOW. The output structure is

CMOS output.

Port P6 is an 8-bit I/O port and has basically the same functions as port P0. The output structure is

N-channel open-drain output.

Pins P60–P67 are also used as PWM output pins PWM0–PWM7. The output structure is CMOS

output.

Ports P70, P71 are 2-bit input port.

Pin P70 is also used as CRT display clock input pin OSC1.

Pin P71 is also used as CRT display clock output pin OSC2. The output structure is CMOS output.

Pins P70, P71 are also used as analog input pins AD4, AD5 respectively.

This is a horizontal synchronous signal input for CRT display.

This is a vertical synchronous signal input for CRT display.

This is a timing output pin. This pin has reset-out output function. The output structure is CMOS

output.

This is an output pin for 14-bit PWM.

The D-A pin is also used as analog input pin AD3.

Note : As shown in the memory map (Figure 5), port P0 is accessed as a memory at address 00C016 of zero page. Port P0 has the port P0

direction register (address 00C116 of zero page) which can be used to program each bit as an input (“0”) or an output (“1”). The pins

programmed as “1” in the direction register are output pins. When pins are programmed as “0,” they are input pins. When pins are

programmed as output pins, the output data are written into the port latch and then output. When data is read from the output pins, the

output pin level is not read but the data of the port latch is read. This allows a previously-output value to be read correctly even if the

output “L” voltage has risen, for example, because a light emitting diode was directly driven. The input pins float, so the values of the pins

can be read. When data is written into the input pin, it is written only into the port latch, while the pin remains in the floating state.

Name

Input/

Output

Functions

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