FlashFlex51 MCU
SST89E52RD2 / SST89E54RD2 / SST89E58RD2 / SST89E516RD2
SST89V52RD2 / SST89V54RD2 / SST89V58RD2 / SST89V516RD2
Preliminary Specifications
TABLE
9-2: SECURITY LOCK ACCESS TABLE
Byte-Verify Allowed
MOVC Allowed
Source
Address1
Target
Address2
Level
SFST[7:5]
External Host3
IAP 516RD2 5xRD2
Block 0/1
External
Block 0/1
External
Block 0/1
External
Block 0/1
External
Block 0
N
N/A
N
N
N/A
N
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
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
Block 0/1
External
Block 0/1
External
111b
4
(hard lock on both blocks)
N/A
N
N/A
N
N/A
N
N/A
N
011b/101b
(hard lock on both blocks)
N/A
N
N/A
N
Block 0
Block 1
N
N
External
Block 0
N/A
N
N/A
Y
001b/110b
(Block 0 = SoftLock,
Block 1 = hard lock)
Block 1
External
Block 0
Block 1
N
N
External
Block 0/1
External
Block 0
N/A
N
N/A
N
3
N/A
N
N/A
N
Block 1
N
Y
External
Block 0
N/A
N
N/A
Y
010b
(SoftLock on both blocks)
Block 1
External
Block 0
Block 1
N
N
External
Block 0/1
External
Block 0
N/A
N
N/A
N
N/A
Y
N/A
N
Block 1
Y
Y
External
Block 0
N/A
Y
N/A
Y
100b
2
(SoftLock on both blocks)
Block 1
External
Block 0
Block 1
Y
N
External
Block 0/1
External
Block 0
N/A
Y
N/A
N
N/A
Y
N/A
N
Block 1
Y
Y
External
Block 0
N/A
Y
N/A
Y
000b
(unlock)
1
Block 1
Block 1
Y
N
External
Block 0/1
External
N/A
Y
N/A
Y
External
N/A
N/A
Y
T9-2.0 1255
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.
©2004 Silicon Storage Technology, Inc.
S71255-00-000
3/04
62
SST [ SILICON STORAGE TECHNOLOGY, INC ]
