MC68HC912B32CFU8 Freescale Semiconductor, MC68HC912B32CFU8 Datasheet - Page 95

• Manufacturer Part Number: MC68HC912B32CFU8
• Description: IC MCU 32K FLASH 8MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC68HC912B32CFU8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 768 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

7.3.2 EEPROM Block Protect Register
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
7.3.3 EEPROM Test Register
Read anytime. Write in special modes only (SMODN = 0). These bits are used for test purposes only. In
normal modes, the bits are forced to 0.
EEODD — Odd Row Programming Bit
EEVEN — Even Row Programming Bit
Freescale Semiconductor
Cannot be modified while programming is taking place (EEPGM = 1).
Refers to a physical location in the array rather than an odd byte address
Refers to a physical location in the array rather than an even byte address.
0 = Associated EEPROM block can be programmed and erased.
1 = Associated EEPROM block is protected from being programmed and erased.
0 = Odd row bulk programming/erasing is disabled.
1 = Bulk program/erase all odd rows.
0 = Even row bulk programming/erasing is disabled.
1 = Bulk program/erase all even rows.
Address: $00F1
Address: $00F2
Reset:
Read:
Write:
Reset:
Read:
Write:
Bit Name
BPROT4
BPROT3
BPROT2
BPROT1
BPROT0
EEODD
Bit 7
Figure 7-3. EEPROM Block Protect Register (EEPROT)
Bit 7
1
1
0
Table 7-1. 768-Byte EEPROM Block Protection
Figure 7-4. EEPROM Test Register (EETST)
EEVEN
6
1
1
6
0
M68HC12B Family Data Sheet, Rev. 9.1
MARG
5
1
1
5
0
Block Protected
$0D00 to $0DFF
$0FC0 to $0FFF
$0E00 to $0EFF
$0F80 to $0FBF
$0F00 to $0F7F
BRPROT4
EECPD
4
1
4
0
BRPROT3
EECPRD
3
1
3
0
BRPROT2
2
1
2
0
0
Block Size
256 bytes
256 bytes
128 bytes
64 bytes
64 bytes
BRPROT1
EECPM
1
0
1
1
EEPROM Control Registers
BRPROT0
Bit 0
Bit 0
0
0
1
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