3822 datasheet(32/328 Pages) RENESAS

32 / 328 page

1-17

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

3822 Group

Data bus

Pull-up control

Timer output

TOUT output control bit

(13) Port P56

Direction

Port latch

(15) Port P70

Data bus

Port selection/Pull-up control

Port XC switch bit

Oscillation circuit

Port P71

Port XC switch bit

Direction

Port latch

(16) Port P71

Data bus

Port selection/Pull-up control

Port XC switch bit

Sub-clock generating circuit input

Direction

Port latch

VL3

VL2

VL1

(17) COM0–COM3

The gate input signal of each

transistor is controlled by the

LCD duty ratio and the bias

value.

VSS

(18) SEG0–SEG11

The voltage applied to the sources of

P-channel and N-channel transistors

is the controlled voltage by the bias

value.

VL2/VL3

VL1/VSS

Analog input pin selection bit

(14) Port P6

Data bus

Pull-up control

Direction

Port latch

A-D conversion input

Fig. 13 Port block diagram (3)

3822 Datasheet(PDF) 32 Page - Renesas Technology Corp

3822 Datasheet(HTML) 32 Page - Renesas Technology Corp

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