HT85F2270 datasheet(110/226 Pages) HOLTEK

110 / 226 page

Rev. 1.00

110 of ��6

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Standard 8051 8-Bit Flash MCU

HT85F2260/HT85F2270/HT85F2280

Low byte of Interrupt Priority Register 1: IP1

SFR Address: E4h

Bit

Name

—

PT�

PC�P

PX6

PX�

PX4

PX�

R/W

—

R/W

POR

—

Bit 7~6

Unimplemented, read as “0”

Bit 5

PT3: Timer 3 Interrupt priority low

Low order bit for Timer 3 interrupt priority level.

Bit 4

PCMP: Comparator Interrupt priority low

Low order bit for Comparator interrupt priority level.

Bit 3

PX6: External interrupt 6 Interrupt priority low

Low order bit for External interrupt 6 interrupt priority level.

Bit 2

PX5: External interrupt 5 priority low

Low order bit for External Interupt 5 interrupt priority level.

Bit 1

PX4: External interrupt 4 Interrupt priority low

Low order bit for External interrupt 4 interrupt priority level.

Bit 0

PX3: External interrupt 3 priority low

Low order bit for External Interupt 3 interrupt priority level.

High byte of Interrupt Priority Register 1: IP1H

SFR Address: E5h

Bit

Name

—

PT�H

PC�PH

PX6H

PX�H

PX4H

PX�H

R/W

—

R/W

POR

—

Bit 7~6

Unimplemented, read as “0”

Bit 5

PT3H: Timer 3 Interrupt priority high

High order bit for Timer 3 interrupt priority level.

Bit 4

PCMPH: Comparator Interrupt priority high

High order bit for Comparator interrupt priority level.

Bit 3

PX6H: External interrupt 6 Interrupt priority high

High order bit for External interrupt 6 interrupt priority level.

Bit 2

PX5H: External interrupt 5 priority high

High order bit for External Interupt 5 interrupt priority level.

Bit 1

PX4H: External interrupt 4 Interrupt priority high

High order bit for External interrupt 4 interrupt priority level.

Bit 0

PX3H: External interrupt 3 priority high

High order bit for External Interupt 3 interrupt priority level.

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