MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 74

• 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

EEPROM
7.3 EEPROM Control Registers
This section describes the EEPROM control registers.
7.3.1 EEPROM Module Configuration Register
Read: Anytime
Write: Varies from bit to bit
EESWAI — EEPROM Stops in Wait Mode Bit
PROTLCK — Block Protect Write Lock Bit
EERC — EEPROM Charge Pump Clock Bit
74
This bit should be cleared if the wait mode vectors are mapped in the EEPROM array.
Write once in normal modes (SMODN = 1). Set and clear anytime in special modes (SMODN = 0).
Write: Anytime
0 = Module is not affected during wait mode.
1 = Module ceases to be clocked during wait mode.
0 = Block protect bits and bulk erase protection bit can be written.
1 = Block protect bits are locked.
0 = System clock is used as clock source for the internal charge pump; internal RC oscillator is
1 = Internal RC oscillator drives the charge pump; RC oscillator is required when the system bus
Address: $00F0
stopped.
clock is lower than f
Reset:
Read:
Write:
Figure 7-2. EEPROM Module Configuration Register (EEMCR)
Bit 7
1
1
$_FC0
$_C00
$_FFF
$_E00
$_F00
$_F80
$_000
$_800
Figure 7-1. EEPROM Block Protect Mapping
PROG
6
1
1
512 BYTES
256 BYTES
128 BYTES
.
2 KBYTES
64 BYTES
64 BYTES
1 KBYTE
BPROT6
BPROT5
BPROT4
BPROT3
BPROT2
BPROT1
BPROT0
MC68HC812A4 Data Sheet, Rev. 7
5
1
1
4
1
1
1
3
1
SINGLE-CHIP
RESERVED
VECTORS
VECTORS
64 BYTES
64 BYTES
EESWAI
2
1
$FF80
$FFBF
$FFC0
$FFFF
PROTLCK
1
0
Freescale Semiconductor
EERC
Bit 0
0