XC912BC32CFU8 Motorola Semiconductor Products, XC912BC32CFU8 Datasheet - Page 100

• Manufacturer Part Number: XC912BC32CFU8
• Description: M68HC12B Family Data Sheet
• Manufacturer: Motorola Semiconductor Products

EEPROM
7.3.2 EEPROM Block Protect Register
Data Sheet
100
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
Cannot be modified while programming is taking place (EEPGM = 1).
Address: $00F1
Reset:
Read:
Write:
0 = Associated EEPROM block can be programmed and erased.
1 = Associated EEPROM block is protected from being programmed and
erased.
Figure 7-3. EEPROM Block Protect Register (EEPROT)
Bit 7
Bit Name
1
1
BPROT4
BPROT3
BPROT2
BPROT1
BPROT0
Table 7-1. 768-Byte EEPROM Block Protection
6
1
1
EEPROM
5
1
1
Block Protected
$0D00 to $0DFF
$0FC0 to $0FFF
$0E00 to $0EFF
$0F80 to $0FBF
$0F00 to $0F7F
BRPROT4
4
1
BRPROT3
3
1
M68HC12B Family — Rev. 8.0
BRPROT2
2
1
BRPROT1
Block Size
256 bytes
256 bytes
128 bytes
64 bytes
64 bytes
1
1
MOTOROLA
BRPROT0
Bit 0
1