MC908AB32CFUE Datasheet, PDF (230/392 Pages) Freescale Semiconductor, Inc – Microcontrollers

Analog-to-Digital Converter (ADC)
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
$0038 ^{ADC Status and Control}
Register
(ADSCR)
Read:
Write:
Reset:
COCO
0
$0039
Read: AD7
ADC Data Register
(ADR)
Write:
Reset: 0
$003A
ADC Clock Register
(ADCLK)
Read:
Write:
Reset:
ADIV2
0
6
5
AIEN ADCO
0
0
AD6
AD5
0
0
ADIV1 ADIV0
0
0
= Unimplemented
4
ADCH4
1
AD4
0
ADICLK
0
3
ADCH3
1
AD3
0
0
0
2
ADCH2
1
AD2
0
0
0
1
ADCH1
1
AD1
0
0
0
Bit 0
ADCH0
1
AD0
0
0
0
Figure 14-1. ADC Register Summary
Technical Data
230
Analog-to-Digital Converter (ADC)
MC68HC908AB32 — Rev. 1.1
Freescale Semiconductor