M68HC128 Datasheet, PDF (100/362 Pages) Motorola, Inc – Microcontrollers

EEPROM
Freescale Semiconductor, Inc.
7.3.2 EEPROM Block Protect Register
Address: $00F1
Bit 7
6
Read:
1
1
Write:
Reset: 1
1
5
4
3
2
1
1
BRPROT4 BRPROT3 BRPROT2 BRPROT1
1
1
1
1
1
Figure 7-3. EEPROM Block Protect Register (EEPROT)
Bit 0
BRPROT0
1
The EEPROM block protect register (EEPROT) prevents accidental writes to
EEPROM.
Read anytime.
Write anytime if EEPGM = 0 and PROTLCK = 0.
BPROT4–BPROT0 — EEPROM Block Protection Bit
0 = Associated EEPROM block can be programmed and erased.
1 = Associated EEPROM block is protected from being programmed and
erased.
Cannot be modified while programming is taking place (EEPGM = 1).
Table 7-1. 768-Byte EEPROM Block Protection
Bit Name
BPROT4
BPROT3
BPROT2
BPROT1
BPROT0
Block Protected
$0D00 to $0DFF
$0E00 to $0EFF
$0F00 to $0F7F
$0F80 to $0FBF
$0FC0 to $0FFF
Block Size
256 bytes
256 bytes
128 bytes
64 bytes
64 bytes
Data Sheet
100
EEPROM
For More Information On This Product,
Go to: www.freescale.com
M68HC12B Family — Rev. 9.0
MOTOROLA