MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 75

• Manufacturer Part Number: MC812A4CPVE8
• Description: IC MCU 16BIT EEPROM 4K 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HC12r

Specifications of MC812A4CPVE8

• Core Processor: CPU12
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, WDT
• Number Of I /o: 83
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: EEPROM
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• Processor Series: HC812A
• Core: HC12
• Data Bus Width: 16 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 8
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Controller Family/series: 68HC12
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 1KB
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

7.3.2 EEPROM Block Protect Register
Read: Anytime
Write: Anytime if EEPGM = 0 and PROTLCK = 0
This register prevents accidental writes to EEPROM.
BPROT6–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
Freescale Semiconductor
These bits cannot be modified while programming is taking place (EEPGM = 1).
0 = Associated EEPROM block can be programmed and erased.
1 = Associated EEPROM block is protected from being programmed and erased.
1 = Bulk program/erase all odd rows
0 = Odd row bulk programming/erasing disabled
Address: $00F1
Address: $00F2
Reset:
Read:
Write:
Reset:
Read:
Write:
EEODD
Bit Name
Bit 7
BPROT6
BPROT5
BPROT4
BPROT3
BPROT2
BPROT1
BPROT0
Bit 7
1
1
0
Figure 7-3. EEPROM Block Protect Register (EEPROT)
= Unimplemented
Figure 7-4. EEPROM Test Register (EEPROT)
Table 7-1. 4-Kbyte EEPROM Block Protection
BPROT6
EEVEN
6
1
6
0
MC68HC812A4 Data Sheet, Rev. 7
BPROT5
MARG
5
1
5
0
Block Protected
$1C00 to $1DFF
$1FC0 to $1FFF
$1800 to $1BFF
$1E00 to $1EFF
$1F80 to $1FBF
$1000 to $17FF
$1F00 to $1F7F
BPROT4
EECPD
4
1
4
0
EECPRD
BPROT3
3
0
3
1
BPROT2
2
0
0
2
1
Block Size
2048 bytes
1024 bytes
512 bytes
256 bytes
128 bytes
64 bytes
64 bytes
EECPM
BPROT1
1
0
1
1
EEPROM Control Registers
BPROT0
Bit 0
Bit 0
0
0
1
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