at88sc1608 ATMEL Corporation, at88sc1608 Datasheet - Page 6

• Manufacturer Part Number: at88sc1608
• Description: 8 X 256 X 8 Secure Memory With Authentication
• Manufacturer: ATMEL Corporation

Figure 3. Access Rights
Note:
6
Zone
Fabrication
(Except CMC)
Fabrication
(Only CMC)
Access
Authentication
Secret
Test
Passwords
PAC
User Zones
CMC = Card Manufacturer Code
AR = Access Rights as defined by the access register
PW = Password
AT88SC1608
Access
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
Read
Write
When the fuses are all “1”s, read and write are allowed in the entire memory. Before
blowing the FAB fuse, Atmel writes the entire memory to “1”, except the fabrication sub-
zone and the secure code.
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Forbidden
FAB = 0
Free
Free
Free
Free
Free
Free
Free
AR
AR
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Secure Code
Forbidden
Forbidden
CMA = 0
Free
Free
Free
Free
Free
Free
Free
AR
AR
Forbidden
Forbidden
Forbidden
Forbidden
Forbidden
Forbidden
Write PW
Write PW
Write PW
PER = 0
0971G–SMEM–04/04
Free
Free
Free
Free
Free
Free
Free
AR
AR