mc68hc08qa24 Freescale Semiconductor, Inc, mc68hc08qa24 Datasheet - Page 284
mc68hc08qa24
Manufacturer Part Number
mc68hc08qa24
Description
M68hc08 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC68HC08QA24.pdf
(400 pages)
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Analog-to-Digital Converter (ADC)
19.8.2 ADC Data Register
19.8.3 ADC Input Clock Register
Technical Data
282
Address:
Address:
One 8-bit result register is provided. This register is updated each time
an ADC conversion completes.
This register selects the clock frequency for the ADC.
ADIV2:ADIV0 — ADC Clock Prescaler Bits
Reset:
Reset:
Read:
Read:
Write:
Write:
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 approximately 1 MHz.
$003A
ADIV2
$0039
Bit 7
Bit 7
AD7
Figure 19-4. ADC Input Clock Register (ADICLK)
R
R
R
Analog-to-Digital Converter (ADC)
0
Figure 19-3. ADC Data Register (ADR)
= Reserved
= Reserved
ADIV1
AD6
R
6
6
0
ADIV0
AD5
R
5
5
0
Indeterminate after reset
ADICLK
AD4
R
4
4
0
AD3
R
R
3
3
0
0
AD2
Freescale Semiconductor
R
R
2
2
0
0
MC68HC08QA24
AD1
R
R
1
1
0
0
Table 19-2
Bit 0
Bit 0
AD0
R
R
0
0
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