MC68HC908QY2 MOTOROLA [Motorola, Inc], MC68HC908QY2 Datasheet - Page 159

• Manufacturer Part Number: MC68HC908QY2
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

11.8.2 ADC Data Register
11.8.3 ADC Input Clock Register
MOTOROLA
MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
Address: $003E
Address: $003F
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.
ADIV2
Bit 7
AD7
Bit 7
Figure 11-5. ADC Input Clock Register (ADICLK)
Analog-to-Digital Converter (ADC)
0
Figure 11-4. ADC Data Register (ADR)
= Unimplemented
= Unimplemented
ADIV1
AD6
6
6
0
ADIV0
AD5
5
5
0
Indeterminate after reset
AD4
0
4
4
0
AD3
3
3
0
0
Analog-to-Digital Converter (ADC)
AD2
2
2
0
0
Input/Output Registers
AD1
1
1
0
0
Table 11-2
Bit 0
AD0
Bit 0
0
0
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