mc908jl16 Freescale Semiconductor, Inc, mc908jl16 Datasheet - Page 123

• Manufacturer Part Number: mc908jl16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 9
Analog-to-Digital Converter (ADC)
9.1 Introduction
This section describes the 10-bit successive approximation analog-to-digital converter (ADC10).
The ADC10 on this MCU uses V
as its alternate clock source for the ADC. This MCU does not have a hardware conversion trigger.
9.2 Features
Features of the ADC10 module include:
Figure 9-1
Freescale Semiconductor
$003C
$003D
$003E
$003F
Addr.
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Linear successive approximation algorithm with 10-bit resolution
Output formatted in 10- or 8-bit right-justified format
Single or continuous conversion (automatic power-down in single conversion mode)
Configurable sample time and conversion speed (to save power)
Conversion complete flag and interrupt
Input clock selectable from up to three sources
Operation in wait and stop modes for lower noise operation
Selectable asynchronous hardware conversion trigger
ADC Status and Control Reg-
ADC10 Data Register High
provides a summary of the input/output (I/O) registers.
Register Name
ADC10 Clock Register
ADC10 Data Register
8/10-Bit Mode
(ADCSC)
(ADCLK)
(ADRH)
(ADRL)
ister
Low
Reset:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Read:
Write:
Write:
Write:
Write:
Figure 9-1. ADC I/O Register Summary
DD
ADLPC
COCO
MC68HC908JL16 Data Sheet, Rev. 1.1
and V
Bit 7
AD7
0
0
0
0
0
SS
ADIV1
AIEN
as its supply and reference pins. This MCU uses OSCOUT
AD6
6
0
0
0
0
0
ADCO
ADIV0
AD5
5
0
0
0
0
0
ADICLK
ADCH4
AD4
4
1
0
0
0
0
Reserved
Reserved
MODE1
ADCH3
AD3
3
1
0
0
0
0
MODE0
ADCH2
AD2
2
1
0
0
0
0
ADLSMP
ADCH1
0/AD9
AD1
1
1
0
0
0
ACLKEN
ADCH0
0/AD8
Bit 0
AD0
1
0
0
0
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