ATA6613 ATMEL Corporation, ATA6613 Datasheet - Page 300

• Manufacturer Part Number: ATA6613
• Description: Ata6613
• Manufacturer: ATMEL Corporation

6.24
6.24.1
300
Memory Programming
ATA6612/ATA6613
Program And Data Memory Lock Bits
The ATA6612/ATA6613 provides six Lock bits which can be left unprogrammed (“1”) or can be
programmed (“0”) to obtain the additional features listed in
be erased to “1” with the Chip Erase command. The SPM instruction is enabled for the whole
Flash if the SELFPRGEN fuse is programmed (“0”), otherwise it is disabled.
Table 6-113. Lock Bit Byte
Notes:
Table 6-114. Lock Bit Protection Modes
Notes:
BLB12
BLB11
BLB02
BLB01
LB2
LB1
LB Mode
Lock Bit Byte
(2)
(2)
(2)
(2)
1
2
3
1. “1” means unprogrammed, “0” means programmed
2. Only on
1. Program the Fuse bits and Boot Lock bits before programming the LB1 and LB2.
2. “1” means unprogrammed, “0” means programmed
Memory Lock Bits
LB2
ATA6612/ATA6613
1
1
0
(1)
LB1
1
0
0
Bit No
7
6
5
4
3
2
1
0
Protection Type
No memory lock features enabled.
Further programming of the Flash and EEPROM is disabled in
Parallel and Serial Programming mode. The Fuse bits are locked
in both Serial and Parallel Programming mode.
Further programming and verification of the Flash and EEPROM
is disabled in Parallel and Serial Programming mode. The Boot
Lock bits and Fuse bits are locked in both Serial and Parallel
Programming mode.
(1)(2)
Description
–
–
Boot Lock bit
Boot Lock bit
Boot Lock bit
Boot Lock bit
Lock bit
Lock bit
(1)
Table
Default Value
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
6-114. The Lock bits can only
(1)
9111C–AUTO–02/08