Samsung C8278X ユーザーズマニュアル

 

 

 

Port 1 Pull-up Control Register (P1PUR)

E9H, Set 1, Bank 0, R/W

.7

.6

.5

.4

.3

.2

.1

.0

MSB

LSB

P1PUR bit configuration settings:

0

1

Enable pull-up resistor

Disable pull-up resistor

P1.3

P1.2

P1.1

P1.0

P1.7

P1.6

P1.5

P1.4

A pull-up resistor of port 1 is automatically disabled when the
corresponding pin is selected as push-pull output or alternative
function.

 

External Interrupt Control Register, High Byte (EXTICONH)

F8H, Set 1, Bank 0, R/W

.7

.6

.5

.4

.3

.2

.1

.0

MSB

LSB

P1.7/INT7

EXTICONH bit configuration settings:

00

01

Enable interrupt by falling edge

Disable interrupt

10

11

Enable interrupt by both falling and rising edge

Enable interrupt by rising edge

P1.6/INT6

P1.5/INT5

P1.4/INT4