MC812A4CPVE8 Freescale Semiconductor, MC812A4CPVE8 Datasheet - Page 104

• 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

Clock Module
104
PORT T7
MCLK
MCLK
TEN
PAEN
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
SCI0 BAUD RATE
SCI1 BAUD RATE
REGISTER: TMSK2
GENERATOR
GENERATOR
(³ 1 TO 8191)
(³ 1 TO 8191)
Figure 10-4. Clock Chain for SCI0, SCI1, RTI, and COP
PR[2:0]
BITS:
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
GATE LOGIC
PAMOD
÷ 16
÷ 16
Figure 10-5. Clock Chain for TIM
MC68HC812A4 Data Sheet, Rev. 7
SCI0 TRANSMIT
SCI1 TRANSMIT
SCI0 RECEIVE
SCI1 RECEIVE
BAUD RATE
BAUD RATE
BAUD RATE
BAUD RATE
PACLK
(16X)
(16X)
(1X)
(1X)
÷ 8192
ACCUMULATOR
LOW BYTE
PULSE
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
÷ 2
REGISTER: RTICTL
RTR[2:1:0]
BITS:
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
ACCUMULATOR
TO RTI
HIGH BYTE
PULSE
÷ 4
÷ 4
÷ 4
÷ 4
÷ 4
÷ 4
REGISTER: COPCTL
Freescale Semiconductor
(PAOV)
PACLK
PACLK
65,536
256
CR[2:1:0]
REGISTER: PACTL
PAEN:CLK1:CLK0
BITS:
0:0:0
0:0:1
0:1:0
0:1:1
1:0:0
1:0:1
1:1:0
1:1:1
BITS:
0:X:X
1:0:0
1:0:1
1:1:0
1:1:1
TO COP
COUNTER
TO TIM