SST89E554 Просмотр технического описания (PDF) - Silicon Storage Technology

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SST89E554

Flash flex 51 MCU

Silicon Storage Technology 

FlashFlex51 MCU

SST89E564 / SST89V564 / SST89E554 / SST89V554

Preliminary Specifications

Interrupt Priority (IP)

Location

7

6

B8H

-

-

5

4

3

2

PT2

PS

PT1

PX1

Symbol

PT2

PS

PT1

PX1

PT0

PX0

Function

Timer 2 interrupt priority bit.

Serial Port interrupt priority bit.

Timer 1 interrupt priority bit.

External interrupt 1 priority bit.

Timer 0 interrupt priority bit.

External interrupt 0 priority bit.

Interrupt Priority High (IPH)

Location

7

6

B7H

-

-

5

PT2H

4

PSH

3

PT1H

2

PX1H

Symbol

PT2H

PSH

PT1H

PX1H

PT0H

PX0H

Function

Timer 2 interrupt priority bit high.

Serial Port interrupt priority bit high.

Timer 1 interrupt priority bit high.

External interrupt 1 priority bit high.

Timer 0 interrupt priority bit high.

External interrupt 0 priority bit high.

Interrupt Priority A (IPA)

Location

7

6

5

4

3

2

F8H

-

-

-

-

PBO

-

Symbol

PBO

Function

Brown-out interrupt priority bit.

Interrupt Priority A High (IPAH)

Location

7

6

5

F7H

-

-

-

4

3

2

-

PBOH

-

Symbol

PBOH

Function

Brown-out Interrupt priority bit high.

1

PT0

1

PT0H

1

-

1

-

0

Reset Value

PX0

xx000000b

0

PX0H

Reset Value

xx000000b

0

Reset Value

-

xxxx0xxxb

0

Reset Value

-

xxxx0xxxb

©2001 Silicon Storage Technology, Inc.

19

S71181-03-000 9/01 384

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