MC68HC908LD64 Datasheet, PDF (178/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

Analog-to-Digital Converter (ADC)
13.2 Introduction
This section describes the analog-to-digital converter (ADC). The ADC
is a 6-channel 8-bit successive approximation ADC.
13.3 Features
Features of the ADC module include:
• Six channels with multiplexed input
• Linear successive approximation
• 8-bit resolution
• Single or continuous conversion
• Conversion complete flag or conversion complete interrupt
Addr. Register Name
Bit 7
6
5
4
3
2
Read: COCO
ADC Status and Control
AIEN ADCO ADCH4 ADCH3 ADCH2
$003B
Register Write:
(ADSCR)
Reset: 0
0
0
1
1
1
$003C
Read: AD7
AD6
AD5
AD4
AD3
AD2
ADC Data Register
(ADR)
Write:
Reset:
Indeterminate after reset
Read:
0
0
0
$003D
ADC Input Clock Register
(ADICLK)
Write:
ADIV2
ADIV1
ADIV0
Reset: 0
0
0
0
0
0
= Unimplemented
Figure 13-1. ADC I/O Register Summary
1
ADCH1
1
AD1
0
0
Bit 0
ADCH0
1
AD0
0
0
Data Sheet
178
Analog-to-Digital Converter (ADC)
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor