87LPC769 datasheet(29/61 Pages) PHILIPS

29 / 61 page

Philips Semiconductors

Preliminary specification

87LPC769

Low power, low price, low pin count (20 pin)

microcontroller with 4 kB OTP 8-bit A/D, and DAC

2001 Jan 11

SU01163

KBF (KBI INTERRUPT)

EKB

(FROM IEN1 REGISTER)

P0.7

KBI.7

P0.6

KBI.6

P0.5

P0.4

P0.3

P0.2

P0.1

P0.0

KBI.5

KBI.4

KBI.3

KBI.2

KBI.1

KBI.0

Figure 17. Keyboard Interrupt

BIT

SYMBOL

FUNCTION

KBI.7

—

When set, enables P0.7 as a cause of a Keyboard Interrupt.

KBI.6

—

When set, enables P0.6 as a cause of a Keyboard Interrupt.

KBI.5

—

When set, enables P0.5 as a cause of a Keyboard Interrupt.

KBI.4

—

When set, enables P0.4 as a cause of a Keyboard Interrupt.

KBI.3

—

When set, enables P0.3 as a cause of a Keyboard Interrupt.

KBI.2

—

When set, enables P0.2 as a cause of a Keyboard Interrupt.

KBI.1

—

When set, enables P0.1 as a cause of a Keyboard Interrupt.

KBI.0

—

When set, enables P0.0 as a cause of a Keyboard Interrupt.

Note: the Keyboard Interrupt must be enabled in order for the settings of the KBI register to be effective. The interrupt flag

(KBF) is located at bit 7 of AUXR1.

KBI.0

SU01164

KBI.1

KBI.2

KBI.3

KBI.4

KBI.5

KBI.6

KBI.7

KBI

Reset Value: 00h

Not Bit Addressable

Address: 86h

Figure 18. Keyboard Interrupt Register (KBI)

87LPC769 Datasheet(PDF) 29 Page - NXP Semiconductors

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