mc9s08jm16 Freescale Semiconductor, Inc, mc9s08jm16 Datasheet - Page 144

• Manufacturer Part Number: mc9s08jm16
• Description: S08jm 8-bit Usb Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Analog-to-Digital Converter (S08ADC12V1)
10.3.8
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.
144
ADPC7
ADPC6
Field
7
6
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
ADPC7
7
0
ADICLK
MODE
ADIV
00
01
10
11
00
01
10
11
00
01
10
11
ADPC6
Table 10-10. APCTL1 Register Field Descriptions
0
6
Figure 10-10. Pin Control 1 Register (APCTL1)
8-bit conversion (N=8)
12-bit conversion (N=12)
10-bit conversion (N=10)
Reserved
Bus clock
Bus clock divided by 2
Alternate clock (ALTCLK)
Asynchronous clock (ADACK)
MC9S08JM16 Series Data Sheet, Rev. 2
ADPC5
Table 10-7. Clock Divide Select
Table 10-8. Conversion Modes
Table 10-9. Input Clock Select
0
5
Divide Ratio
1
2
4
8
ADPC4
Selected Clock Source
0
4
Mode Description
Description
ADPC3
0
3
Input clock ÷ 2
Input clock ÷ 4
Input clock ÷ 8
Clock Rate
Input clock
ADPC2
0
2
ADPC1
Freescale Semiconductor
0
1
ADPC0
0
0