Renesas PCA4738L-64A Información técnica descargar pdf (Pagina 22)

SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3822 Group

MITSUBISHI MICROCOMPUTERS

Fig. 15 Port block diagram (1)

(3) Ports P3

–P3

(1) Ports P0, P1

Segment output enable bit

(Note)

(2) Ports P2, P4

, P4

, P5

Direction register

(5) Port P4

Direction register

(6) Port P4

Receive enable bit

Direction register

(4) Port P4

Data bus

Pull-down control

Segment output enable bit

Data bus

Direction register

Port latch

Pull-down control

Segment output enable bit

Note: Bit 0 of direction register.

Data bus Port latch

Pull-up control

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

INT

–INT

interrupt input

φ output control bit

Pull-up control

Data bus

Port latch

Pull-up control

Serial I/O enable bit

Serial I/O input

Data bus Port latch

Data bus

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 81 82

To our customers 1
Renesas Technology Corp 3
Customer Support Dept 3
April 1, 2003 3
To all our customers 3
3822 Group 10

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Renesas PCA4738L-64A Información técnica Pagina 22

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