Motorola MC68HC908AB32 - Features; Introduction

Analog-to-Digital Converter (ADC)
Technical Data MC68HC908AB32 — Rev. 1.0
230 Analog-to-Digital Converter (ADC) MOTOROLA
14.2 Introduction
This section describes the 8-bit analog-to-digital converter (ADC).
14.3 Features
Features of the ADC module include:
• Eight channels with multiplexed input
• Linear successive approximation with monotonicity
• 8-bit resolution
• Single or continuous conversion
• Conversion complete flag or conversion complete interrupt
• Selectable ADC clock
Addr. Register Name Bit 7 654321Bit 0
$0038
ADC Status and Control
Register
(ADSCR)
Read:
COCO AIEN ADCO ADCH4 ADCH3 ADCH2 ADCH1 ADCH0
Write:
Reset: 00011111
$0039
ADC Data Register
(ADR)
Read: AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0
Write:
Reset: 00000000
$003A
ADC Clock Register
(ADCLK)
Read:
ADIV2 ADIV1 ADIV0 ADICLK
0000
Write:
Reset: 00000000
= Unimplemented
Figure 14-1. ADC Register Summary