mc9s08qd4 Freescale Semiconductor, Inc, mc9s08qd4 Datasheet - Page 107

• Manufacturer Part Number: mc9s08qd4
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

8.3.8
Freescale Semiconductor
The pin control registers are used to 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.
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 is used to control 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 is used to control 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 is used to control 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 is used to control 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 is used to control 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 is used to control the pin associated with channel AD2.
0 AD2 pin I/O control enabled
1 AD2 pin I/O control disabled
ADPC7
7
0
ADICLK
00
01
10
11
ADPC6
0
6
Table 8-9. APCTL1 Register Field Descriptions
Figure 8-11. Pin Control 1 Register (APCTL1)
MC9S08QD4 Series MCU Data Sheet, Rev. 3
Bus clock
Bus clock divided by 2
Alternate clock (ALTCLK)
Asynchronous clock (ADACK)
ADPC5
Table 8-8. Input Clock Select
0
5
ADPC4
Selected Clock Source
0
4
Description
ADPC3
0
3
ADPC2
Analog-to-Digital Converter (S08ADC10V1)
0
2
ADPC1
0
1
ADPC0
0
0
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