MC9S08AW16CFUE Datasheet, PDF (245/324 Pages) Freescale Semiconductor, Inc – MC9S08AW60 Features

Chapter 14 Analog-to-Digital Converter (S08ADC10V1)
ADICLK
00
01
10
11
Table 14-8. Input Clock Select
Selected Clock Source
Bus clock
Bus clock divided by 2
Alternate clock (ALTCLK)
Asynchronous clock (ADACK)
14.4.8 Pin Control 1 Register (APCTL1)
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.
7
R
ADPC7
W
6
ADPC6
5
ADPC5
4
ADPC4
3
ADPC3
2
ADPC2
1
ADPC1
0
ADPC0
Reset:
0
0
0
0
0
0
0
0
Figure 14-11. Pin Control 1 Register (APCTL1)
Table 14-9. APCTL1 Register Field Descriptions
Field
7
ADPC7
6
ADPC6
5
ADPC5
4
ADPC4
3
ADPC3
2
ADPC2
Description
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
MC9S08AW60 Data Sheet, Rev 2
Freescale Semiconductor
245