MC68HC908JK3 MOTOROLA [Motorola, Inc], MC68HC908JK3 Datasheet - Page 137
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MC68HC908JK3
Manufacturer Part Number
MC68HC908JK3
Description
MC68HC908JK1
Manufacturer
MOTOROLA [Motorola, Inc]
Datasheet
1.MC68HC908JK3.pdf
(210 pages)
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11.1 Contents
11.2 Introduction
MC68H(R)C908JL3
MOTOROLA
Technical Data — MC68H(R)C908JL3
—
Section 11. Analog-to-Digital Converter (ADC)
Rev. 1.0
11.2
11.3
11.4
11.4.1
11.4.2
11.4.3
11.4.4
11.4.5
11.5
11.6
11.6.1
11.6.2
11.7
11.7.1
11.8
11.8.1
11.8.2
11.8.3
This section describes the analog-to-digital converter (ADC). The ADC
is an 8-bit, 12-channels analog-to-digital converter.
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
ADC Port I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Voltage Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Continuous Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Accuracy and Precision . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
ADC Voltage In (ADCVIN) . . . . . . . . . . . . . . . . . . . . . . . . . 142
ADC Status and Control Register. . . . . . . . . . . . . . . . . . . . 142
ADC Data Register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
ADC Input Clock Register . . . . . . . . . . . . . . . . . . . . . . . . . 145
Analog-to-Digital Converter (ADC)
Technical Data
137