SST89V54RD2 Silicon Storage Technology, Inc., SST89V54RD2 Datasheet - Page 56

• Manufacturer Part Number: SST89V54RD2
• Description: Flashflex51 Mcu
• Manufacturer: Silicon Storage Technology, Inc.

Data Sheet
TABLE
©2007 Silicon Storage Technology, Inc.
Level
1. Location of MOVC or IAP instruction
2. Target address is the location of the byte being read
3. External host Byte-Verify access does not depend on a source address.
4
3
2
1
9-2: Security Lock Access Table
(hard lock on both blocks)
(hard lock on both blocks)
(SoftLock on both blocks)
(SoftLock on both blocks)
(Block 0 = SoftLock,
Block 1 = hard lock)
011b/101b
001b/110b
SFST[7:5]
(unlock)
111b
010b
100b
000b
Address
Block 0/1
Block 0/1
External
External
External
External
External
External
Source
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
1
56
Address
Block 0/1
Block 0/1
Block 0/1
Block 0/1
Block 0/1
Block 0/1
Block 0/1
Block 0/1
External
External
External
External
External
External
External
External
External
External
External
External
External
External
External
External
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Block 0
Block 1
Target
SST89V54RD2/RD / SST89V58RD2/RD
2
External Host
Byte-Verify Allowed
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
3
IAP
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N
N
N
N
N
N
Y
N
N
N
Y
Y
N
N
N
Y
Y
N
N
N
Y
Y
N
Y
FlashFlex MCU
MOVC Allowed
S71255-10-000
5xRDx
Y
Y
N
Y
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 1255
12/07