MC68HC08AS32A Datasheet, PDF (49/296 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Memory
Electrically Erasable Programmable ROM (EEPROM)
Table 2-5. EEPROM Block Protect and Security Summary
Address
Range
$0800—$087F
$0880–$08EF
$08F0—$08FF
$0900–$097F
$0980–$09FF
EEBPx
EEPRTCT = 1
EEBP0 = 0
EEBP0 = 1
EEBP1 = 0
EEBP1 = 1
EEBP1 = 0
EEBP1 = 1
EEBP2 = 0
EEBP2 = 1
EEBP3 = 0
EEBP3 = 1
Byte programming available
Bulk, block, and byte
erasing available
Protected
Byte programming available
Bulk, block, and byte erasing
available
Protected
Byte programming available
Bulk, block, and byte erasing
available
Protected
Byte programming available
Bulk, block, and byte erasing
available
Protected
Byte programming available
Bulk, block, and byte erasing
available
Protected
EEPRTCT = 0
Byte programming available
Only byte erasing available
Protected
Byte programming available
Only byte erasing available
Protected
Secured
(no programming or erasing)
Byte programming available
Only byte erasing available
Protected
Byte programming available
Only byte erasing available
Protected
2.5.2.3 EEPROM Non-Volatile Register
The contents of this register is loaded into the EEPROM array configuration
register (EEACR) after a reset.
This register is erased and programmed in the same way as an EEPROM byte.
See 2.5.2.1 EEPROM Control Register for individual bit descriptions.
NOTE:
Address: $FE1C
Bit 7
6
5
4
3
2
1
Read:
UNUSED UNUSED UNUSED EEPRTCT EEBP3
Write:
EEBP2
EEBP1
Reset:
Programmed value or 1 in the erased state
Figure 2-5. EEPROM Non-Volatile Register (EENVR)
Bit 0
EEBP0
The EENVR will leave the factory programmed with $F0 such that the full array is
available and unprotected.
MC68HC08AS32A — Rev. 1
MOTOROLA
Memory
For More Information On This Product,
Go to: www.freescale.com
Data Sheet
49