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Motorola MC68HC908AB32 User Manual

Motorola MC68HC908AB32
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MC68HC908AB32 — Rev. 1.0 Technical Data
MOTOROLA Analog-to-Digital Converter (ADC) 229
Technical Data — MC68HC908AB32
Section 14. Analog-to-Digital Converter (ADC)
14.1 Contents
14.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .230
14.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .230
14.4 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .231
14.4.1 ADC Port I/O Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
14.4.2 Voltage Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
14.4.3 Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
14.4.4 Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .232
14.4.5 Accuracy and Precision . . . . . . . . . . . . . . . . . . . . . . . . . . .233
14.5 Interrupts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
14.6 Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
14.6.1 Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
14.6.2 Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
14.7 I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .233
14.7.1 ADC Analog Power Pin (V
DDAREF
). . . . . . . . . . . . . . . . . . .234
14.7.2 ADC Analog Ground Pin (A
VSS
/V
REFL
) . . . . . . . . . . . . . . .234
14.7.3 ADC Voltage Reference High Pin (V
REFH
). . . . . . . . . . . . .234
14.7.4 ADC Voltage In (V
ADIN
) . . . . . . . . . . . . . . . . . . . . . . . . . . .234
14.8 I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .234
14.8.1 ADC Status and Control Register (ADSCR). . . . . . . . . . . .235
14.8.2 ADC Data Register (ADR) . . . . . . . . . . . . . . . . . . . . . . . . .237
14.8.3 ADC Clock Register (ADCLK) . . . . . . . . . . . . . . . . . . . . . .237

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Motorola MC68HC908AB32 Specifications

General IconGeneral
BrandMotorola
ModelMC68HC908AB32
CategoryController
LanguageEnglish

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