MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 95

• 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

9.2.4 Port D Key Wakeup Flag Register
Read: Anytime
Write: Anytime
Each flag is set by a falling edge on its associated input pin. To clear the flag, write 1 to the corresponding
bit in KWIFD.
This register is not in the map in wide expanded modes or in special expanded narrow mode with MODE
register bit EMD set.
KWIFD7–KWIFD0 — Key Wakeup Port D Flags
9.2.5 Port H Data Register
Read: Anytime
Write: Anytime
Port H is associated with key wakeup H. Key wakeups can be used with the pins designated as inputs or
outputs. DDRH determines whether each pin is an input or output.
Freescale Semiconductor
1 = Falling edge on the associated bit has occurred. An interrupt occurs if the associated enable bit
0 = Falling edge on the associated bit has not occurred.
Alternate pin function:
is set.
Address: $0021
Reset:
Read:
Write:
Address: $0024
Reset:
Read:
Write:
Bit 7
Bit 7
Figure 9-4. Port D Key Wakeup Flag Register (KWIFD)
0
KWH7
Bit 7
PH7
0
Figure 9-5. Port H Data Register (PORTH)
Bit 6
6
0
KWH6
PH6
MC68HC812A4 Data Sheet, Rev. 7
6
0
Bit 5
5
0
KWH5
PH5
5
0
Bit 4
4
0
KWH4
PH4
4
0
Bit 3
3
0
KWH3
PH3
3
0
Bit 2
2
0
KWH2
PH2
2
0
Bit 1
1
0
KWH1
PH1
1
0
Key Wakeup Registers
Bit 0
Bit 0
0
KWH0
Bit 0
PH0
0
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