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Rainbow Electronics AT89LP216 User Manual

Page 21

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21

3621A–MICRO–6/06

AT89LP216 [Preliminary]

Table 12-3.

IP – Interrupt Priority Register

IP = B8H

Reset Value = X000 0000B

Bit Addressable

PGP

PS

PT1

PX1

PT0

PX0

Bit

7

6

5

4

3

2

1

0

Symbol

Function

PGP

General-purpose Interrupt Priority Low

PS

Serial Port Interrupt Priority Low

PT1

Timer 1 Interrupt Priority Low

PX1

External Interrupt 1 Priority Low

PT0

Timer 0 Interrupt Priority Low

PX0

External Interrupt 0 Priority Low

Table 12-4.

IPH – Interrupt Priority High Register

IPH = B7H

Reset Value = X000 0000B

Not Bit Addressable

PGH

PSH

PT1H

PX1H

PT0H

PX0H

Bit

7

6

5

4

3

2

1

0

Symbol

Function

PGH

General-purpose Interrupt Priority High

PSH

Serial Port Interrupt Priority High

PT1H

Timer 1 Interrupt Priority High

PX1H

External Interrupt 1 Priority High

PT0H

Timer 0 Interrupt Priority High

PX0H

External Interrupt 0 Priority High