SST89E554 查看數據表（PDF） - Silicon Storage Technology

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SST89E554

Flash flex 51 MCU

Silicon Storage Technology 

FlashFlex51 MCU

SST89E564 / SST89V564 / SST89E554 / SST89V554

Preliminary Specifications

SuperFlash Data Register (SFDT)

Location

7

6

5

4

3

2

1

0

Reset Value

0B5H

SuperFlash Data Register

00000000b

Symbol

SFDT

Function

Mailbox register for interfacing with flash memory block. (Data register).

SuperFlash Address Registers (SFAL)

Location

7

0B3H

6

5

4

3

2

1

SuperFlash Low Order Byte Address Register

0

Reset Value

00000000b

Symbol

SFAL

Function

Mailbox register for interfacing with flash memory block. (Low order address register).

SuperFlash Address Registers (SFAH)

Location

7

0B4H

6

5

4

3

2

1

SuperFlash High Order Byte Address Register

0

Reset Value

00000000b

Symbol

SFAH

Function

Mailbox register for interfacing with flash memory block. (High order address register).

Interrupt Enable (IE)

Location

7

6

A8H

EA

-

5

4

3

2

1

0

Reset Value

ET2

ES

ET1

EX1

ET0

EX0

00H

Symbol

EA

ET2

ES

ET1

EX1

ET0

EX0

Function

Global Interrupt Enable.

0 = Disable

1 = Enable

Timer 2 Interrupt Enable.

Serial Interrupt Enable.

Timer 1 Interrupt Enable.

External 1 Interrupt Enable.

Timer 0 Interrupt Enable.

External 0 Interrupt Enable.

Interrupt Enable A (IEA)

Location

7

6

5

4

3

2

1

0

Reset Value

E8H

-

-

-

-

EBO

-

-

-

xxxx0xxxb

Symbol

EBO

Function

Brown-out Interrupt Enable.

1 = Enable the interrupt

0 = Disable the interrupt

©2001 Silicon Storage Technology, Inc.

18

S71181-03-000 9/01 384

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