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EM78159NKM

8-Bit Microcontroller with OTP ROM

ELAN Microelectronics 

EM78P159N

8-Bit Microcontrollerwith OTP ROM

4.1.8 RE (Wake Up Control Register)

Bit 7

-

Bit 6

-

Bit 5

-

Bit 4

-

Bit 3

-

Bit 2

-

Bit 1

ICWE

Bit 0

-

Bits 0:

Not used.

Bit 1 (ICWE): Port 6 input status change wake-up enable bit

0 = Disable Port 6 input status change wake-up

1 = Enable Port 6 input status change wake-up

Bits 2 ~ 7: Not used.

4.1.9 RF (Interrupt Status Register)

Bit 7

-

Bit 6

-

Bit 5

-

Bit 4

-

Bit 3

-

Bit 2

EXIF

Bit 1

ICIF

Bit 0

TCIF

“1” means interrupt request, and “0” means no interrupt occurs.

Bit 0 (TCIF): TCC overflow interrupt flag. Set when TCC overflows. Reset by

software.

Bit 1 (ICIF): Port 6 input status change interrupt flag. Set when Port 6 input changes.

Reset by software.

Bit 2 (EXIF): External interrupt flag. Set by falling edge on /INT pin. Reset by

software.

Bits 3 ~ 7: Not used.

RF can be cleared by instruction but cannot be set.

IOCF is the interrupt mask register.

NOTE

The result of reading RF is the "logic AND" of RF and IOCF.

4.1.10 R10 ~ R3F

These are all 8-bit general-purpose registers.

10 •

Product Specification (V1.0) 03.10.2006

(This specification is subject to change without further notice)

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