mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 178
mcf51ac256a
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mcf51ac256a
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Mcf51ac Flexis
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MCF51AC256A.pdf
(566 pages)
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Analog-to-Digital Converter (S08ADC12V1)
9.3.8
The pin control registers disable the I/O port control of MCU pins used as analog inputs. APCTL1 is used
to control the pins associated with channels 0–7 of the ADC module.
9-12
ADPC7
ADPC6
ADPC5
ADPC4
ADPC3
ADPC2
Field
7
6
5
4
3
2
Reset:
W
R
Pin Control 1 Register (APCTL1)
ADC Pin Control 7. ADPC7 controls the pin associated with channel AD7.
0 AD7 pin I/O control enabled
1 AD7 pin I/O control disabled
ADC Pin Control 6. ADPC6 controls the pin associated with channel AD6.
0 AD6 pin I/O control enabled
1 AD6 pin I/O control disabled
ADC Pin Control 5. ADPC5 controls the pin associated with channel AD5.
0 AD5 pin I/O control enabled
1 AD5 pin I/O control disabled
ADC Pin Control 4. ADPC4 controls the pin associated with channel AD4.
0 AD4 pin I/O control enabled
1 AD4 pin I/O control disabled
ADC Pin Control 3. ADPC3 controls the pin associated with channel AD3.
0 AD3 pin I/O control enabled
1 AD3 pin I/O control disabled
ADC Pin Control 2. ADPC2 controls the pin associated with channel AD2.
0 AD2 pin I/O control enabled
1 AD2 pin I/O control disabled
ADPC7
7
0
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
ADICLK
00
01
10
11
ADPC6
0
Table 9-10. APCTL1 Register Field Descriptions
6
Figure 9-9. Pin Control 1 Register (APCTL1)
Bus clock
Bus clock divided by 2
Alternate clock (ALTCLK)
Asynchronous clock (ADACK)
ADPC5
Table 9-9. Input Clock Select
0
5
ADPC4
Selected Clock Source
0
4
Description
ADPC3
0
3
ADPC2
0
2
ADPC1
Freescale Semiconductor
0
1
ADPC0
0
0
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