MC68HC908MR16CFU Freescale Semiconductor, MC68HC908MR16CFU Datasheet - Page 55

• Manufacturer Part Number: MC68HC908MR16CFU
• Description: IC MCU 8MHZ 16K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908MR16CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 44
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

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.
3.7.4 ADC Clock Register
This register selects the clock frequency for the ADC, selecting between modes of operation.
ADIV2:ADIV0 — ADC Clock Prescaler Bits
Freescale Semiconductor
ADIV2, ADIV1, and ADIV0 form a 3-bit field which selects the divide ratio used by the ADC to generate
the internal ADC clock.
Address:
Address:
Address:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Figure 3-8. ADC Data Register Low (ADRL) Right Justified Mode
Figure 3-9. ADC Data Register Low (ADRL) 8-Bit Mode
ADIV2
$0042
$0042
$0043
Bit 7
AD7
Bit 7
AD9
Bit 7
R
R
R
R
R
0
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Table 3-2
X = don’t care
ADIV2
Figure 3-10. ADC Clock Register (ADCLK)
0
0
0
0
1
= Reserved
= Reserved
= Reserved
ADIV1
AD6
AD8
R
R
6
6
6
0
Table 3-2. ADC Clock Divide Ratio
shows the available clock configurations.
ADIV1
0
0
1
1
X
ADIV0
AD5
AD7
R
R
5
5
5
0
ADIV0
ADICLK
Unaffected by reset
Unaffected by reset
X
0
1
0
1
AD4
AD6
R
R
4
4
4
0
ADC input clock ÷ 1
ADC input clock ÷ 2
ADC input clock ÷ 4
ADC input clock ÷ 8
ADC input clock ÷ 16
MODE1
AD3
AD5
ADC Clock Rate
R
R
3
3
3
0
MODE0
AD2
AD4
R
R
2
2
2
1
AD1
AD3
R
R
1
1
1
0
0
Bit 0
AD0
Bit 0
AD2
Bit 0
R
R
R
0
0
I/O Registers
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