SST89V554RC-25-C-PI View Datasheet(PDF) - Silicon Storage Technology

Part Name

Description

MFG CO.

SST89V554RC-25-C-PI

FlashFlex51 MCU

Silicon Storage Technology 

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FlashFlex51 MCU

SST89E564RD / SST89V564RD / SST89E554RC / SST89V554RC

Preliminary Specifications

TABLE 9-2: SECURITY LOCK ACCESS TABLE

Level

4

3

2

1

SFST[7:5]

111b

(Hard Lock on both blocks)

011b/101b

(Hard Lock on both blocks)

001b/110b

(Block 0 = SoftLock,

Block 1 = Hard Lock)

010b

(SoftLock on both blocks)

100b

(SoftLock on both blocks)

000b

(Unlock)

Source

Address

Block 0/1

External

Block 0/1

External

Block 0

Block 1

External

Block 0

Block 1

External

Block 0

Block 1

External

Block 0

Block 1

External

Target

Address1

Block 0/1

External

Block 0/1

External

Block 0/1

External

Block 0/1

External

Block 0

Block 1

External

Block 0

Block 1

External

Block 0/1

External

Block 0

Block 1

External

Block 0

Block 1

External

Block 0/1

External

Block 0

Block 1

External

Block 0

Block 1

External

Block 0/1

External

Block 0

Block 1

External

Block 0

Block 1

External

Block 0/1

External

External Host

Byte-Verify

Allowed2

N

N/A

N

N/A

N

N

N

N/A

N

N

N/A

N

N

N/A

N

N/A

N

N

N/A

N

N

N/A

N

N/A

Y

Y

N/A

Y

Y

N/A

Y

N/A

Y

Y

N/A

Y

Y

N/A

Y

N/A

1. Location of MOVC instruction

2. External Host Byte-Verify access does not depend on a source address.

IAP

Byte-Verify

Allowed

N

N

N

N

N

N

N

N

N

N

N

Y

N

N

N

N

N

Y

N

Y

N

N

N

N

N

Y

N

Y

N

N

N

N

N

Y

N

Y

N

N

Y

N

MOVC

Allowed

on 564RD

Y

N

N

N

Y

N

N

Y

Y

N

N

Y

Y

N

N

Y

Y

Y

N

Y

Y

N

N

Y

Y

Y

N

Y

Y

N

N

Y

Y

Y

N

Y

Y

N

N

Y

MOVC

Allowed

on 554RC

Y

N

N

N

Y

Y

N

Y

Y

N

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

N

Y

Y

Y

Y

Y

Y

Y

Y

Y

T9-2.0 555

©2001 Silicon Storage Technology, Inc.

46

S71207-00-000 9/01 555

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