7516 datasheet(15/90 Pages) RENESAS

15 / 90 page

Rev.1.01

Jul 01, 2003

page 15 of 89

7516 Group

Fig. 11 Port block diagram (2)

(9) Port P23

(10) Port P24

(12) Port P26

(11) Port P25

(14) Ports P30–P37

(13) Port P27

(15) Port P40

(16) Ports P41, P42

Data bus

Port latch

Direction

SDA/SCL pin selection bit

I2C-BUS interface enable bit

SCL output

SCL input

SDA output

SDA input

SDA/SCL pin selection bit

I2C-BUS interface enable bit

Data bus

Port latch

Direction

Data bus

Port latch

Direction

Data bus

Port latch

Direction

Data bus

Port latch

Direction

Data bus

Port latch

Direction

Data bus

Port latch

Direction

Data bus

Port latch

Direction

Serial I/O1 input

Serial I/O1 enable bit

Receive enable bit

Serial I/O1 enable bit

Serial I/O1 mode selection bit

Serial I/O1 enable bit

Serial I/O1 synchronous clock

selection bit

External clock input

Serial I/O1 clock output

P-channel output disable bit

Serial I/O1 enable bit

Transmit enable bit

SDA/SCL pin selection bit

I2C-BUS interface enable bit

SCL input

Serial I/O1 output

SCL output

CNTR0

interrupt input

Pulse output mode

Timer output

Serial ready output

A-D converter input

Analog input pin

selection bit

Interrupt input

CNTR1 interrupt input

Pulse output mode

Timer output

Pulse output mode

Serial I/O1 enable bit

Serial I/O1 mode selection bit

SRDY1 output enable bit

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