MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 324

• Manufacturer Part Number: MC908MR8MPE
• Description: IC MCU 8BIT 8K FLASH 28-PDIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC908MR8MPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 12
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Analog-to-Digital Converter (ADC)
18.9.4 ADC Clock Register
Technical Data
324
In 8-bit mode, this 8-bit result register holds the eight MSBs of the 10-bit
result. This register is updated each time an ADC conversion completes.
In 8-bit mode, this register contains no interlocking with ADRH.
Reset:
This register selects the clock frequency for the ADC, selecting between
modes of operation.
Reset:
ADIV2:ADIV0 — ADC Clock Prescaler Bits
dress:
dress:
Read:
Read:
Write:
Write:
Ad-
Ad-
ADIV2, ADIV1, and ADIV0 form a 3-bit field which selects the divide
ratio used by the ADC to generate the internal ADC clock.
shows the available clock configurations. The ADC clock should be
set to between 500 kHz and 1 MHz.
ADIV2
$0042
$0043
Bit 7
Bit 7
AD9
R
R
R
Analog-to-Digital Converter (ADC)
0
Figure 18-8. ADC Data Register Low (ADRL)
Figure 18-9. ADC Clock Register (ADCLK)
= Reserved
= Reserved
ADIV1
AD8
R
6
6
0
ADIV0
AD7
R
5
5
0
8-Bit Mode
Unaffected by Reset
ADICLK MODE1 MODE0
AD6
R
4
4
0
AD5
R
3
3
0
MC68HC908MR8 — Rev 4.1
AD4
Freescale Semiconductor
R
2
2
1
AD3
R
1
1
0
0
Table 18-2
Bit 0
Bit 0
AD2
R
R
0
0