MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 198

• 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

Analog-to-Digital Converter (ATD)
16.5 Functional Description
A single conversion sequence consists of four or eight conversions, depending on the state of the select
8-channel mode bit, S8CM, in ATD control register 5 (ATDCTL5). There are eight basic conversion
modes.
In the non-scan modes, the sequence complete flag, SCF, is set after the sequence of four or eight
conversions has been performed and the ATD module halts.
In the scan modes, the SCF flag is set after the first sequence of four or eight conversions has been
performed, and the ATD module continues to restart the sequence.
198
Addr.
$007C
$006F
$007A
$007E
$0070
$0072
$0074
$0076
$0078
ATD Result Register 0
ATD Result Register 1
ATD Result Register 2
ATD Result Register 3
ATD Result Register 4
ATD Result Register 5
ATD Result Register 6
ATD Result Register 7
Register Name
Register (PORTAD)
Port AD Data Input
See page 207.
See page 206.
See page 206.
See page 206.
See page 206.
See page 206.
See page 206.
See page 206.
See page 206.
(ADR0H)
(ADR1H)
(ADR2H)
(ADR3H)
(ADR4H)
(ADR5H)
(ADR6H)
(ADR7H)
Figure 16-2. ATD I/O Register Summary (Continued)
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
Write:
ADRxH7
ADRxH7
ADRxH7
ADRxH7
ADRxH7
ADRxH7
ADRxH7
ADRxH7
PAD7
Bit 7
0
MC68HC812A4 Data Sheet, Rev. 7
= Unimplemented
ADRxH6
ADRxH6
ADRxH6
ADRxH6
ADRxH6
ADRxH6
ADRxH6
ADRxH6
PAD6
6
0
ADRxH5
ADRxH5
ADRxH5
ADRxH5
ADRxH5
ADRxH5
ADRxH5
ADRxH5
PAD5
5
0
ADRxH4
ADRxH4
ADRxH4
ADRxH4
ADRxH4
ADRxH4
ADRxH4
ADRxH4
PAD4
4
0
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
Indeterminate
ADRxH3
ADRxH3
ADRxH3
ADRxH3
ADRxH3
ADRxH3
ADRxH3
ADRxH3
PAD3
3
0
ADRxH2
ADRxH2
ADRxH2
ADRxH2
ADRxH2
ADRxH2
ADRxH2
ADRxH2
PAD2
2
0
Freescale Semiconductor
ADRxH1
ADRxH1
ADRxH1
ADRxH1
ADRxH1
ADRxH1
ADRxH1
ADRxH1
PAD1
1
0
ADRxH0
ADRxH0
ADRxH0
ADRxH0
ADRxH0
ADRxH0
ADRxH0
ADRxH0
PAD0
Bit 0
0