Renesas PCA4738F-80A Manuel d'utilisateur télécharger pdf (Page 15)

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

MITSUBISHI MICROCOMPUTERS

38C3 Group

Fig. 12 Port block diagram (3)

(14)Port P7

Direction register

Data bus

Port latch

Port selection • pull-up control

Oscillator

Port P7

(15)Port P7

Direction register

Data bus

Port Xc switch bit

Port latch

Port selection • pull-up control

Sub-clock generating circuit input

(16)COM

–COM

The gate input signal of each

transistor is controlled by the

LCD duty ratio and the bias

value.

(13)Port P6

Analog input pin selection bit

A-D conversion input

Data bus

Port latch

Direction register

Pull-up control

(17)Port P8

Key input (key-on wake-up) interrupt input

Data bus

Direction register

Port latch

Pull-up control

P-channel output disable bit

Port Xc switch bit

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 63 64

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Renesas PCA4738F-80A Manuel d'utilisateur Page 15