UG-498
ADuCM320 Hardware Reference Manual
Rev. C | Page 2 of 196
TABLE OF CONTENTS
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 4
Using the ADuCM320 Hardware Reference Manual .................. 6
Number Notations ........................................................................ 6
Register Access Conventions ...................................................... 6
Acronyms and Abbreviations ..................................................... 6
Introduction to the ADuCM320 .................................................... 7
Main Features of ADuCM320 .................................................... 7
Memory Organization ................................................................. 8
Clocking Architecture .................................................................... 10
Clocking Architecture Features ................................................ 10
Clocking Architecture Block Diagram .................................... 11
Clocking Architecture Overview.............................................. 12
Register Summary: Clock Architecture ................................... 12
Clocking Architecture Operation ............................................ 12
Register Details: Clock Architecture ........................................ 13
Power Management Unit ............................................................... 16
Power Management Unit Features ........................................... 16
Power Management Unit Overview ......................................... 16
Power Management Unit Operation ........................................ 16
Code Examples ........................................................................... 17
Register Summary: Power Management Unit ........................ 18
Register Details: Power Management Unit ............................. 18
ARM Cortex-M3 Processor .......................................................... 19
ARM Cortex-M3 Processor Features ....................................... 19
ARM Cortex-M3 Processor Overview .................................... 19
ARM Cortex-M3 Processor Operation ................................... 19
ARM Cortex-M3 Processor Related Documents ................... 20
ADC Circuit .................................................................................... 21
ADC Circuit Features ................................................................ 21
ADC Circuit Block Diagram ..................................................... 21
ADC Circuit Overview .............................................................. 22
ADC Circuit Operation ............................................................. 22
ADC Transfer Function ............................................................. 23
ADC Typical Setup Sequence ................................................... 24
ADC Input Buffer ....................................................................... 24
ADC Internal Channels ............................................................. 24
ADC Support Circuits ............................................................... 25
Register Summary: ADC Circuit ............................................. 28
Register Details: ADC Circuit .................................................. 29
Register Summary: Additional Registers ................................ 33
Register Details: Additional Registers ..................................... 33
Analog Comparator ....................................................................... 35
Analog Comparator Features .................................................... 35
Analog Comparator Overview ................................................. 35
Analog Comparator Operation ................................................ 35
Register Summary: Analog Comparator ................................. 36
Register Details: Analog Comparator ...................................... 36
IDAC Features ............................................................................ 37
IDAC Block Diagram ................................................................. 37
IDAC Overview .......................................................................... 37
Register Summary: IDAC ......................................................... 40
Register Details: IDAC ............................................................... 40
VDAC Features ........................................................................... 43
VDAC Block Diagram ............................................................... 43
VDAC Overview ........................................................................ 43
VDAC Operation ....................................................................... 43
Register Summary: VDAC ........................................................ 44
Register Details: VDAC ............................................................. 44
System Exceptions and Peripheral Interrupts............................. 49
Cortex-M3 and Fault Management ......................................... 49
External Interrupt Configuration ............................................ 53
Register Summary: External Interrupts .................................. 53
Register Details: External Interrupts ....................................... 53
Low Voltage Analog Die Interrupt Configuration................. 56
Register Summary: Low Voltage Die Interrupts .................... 57
Register Details: Low Voltage Die Interrupts ......................... 57
Reset Features ............................................................................. 59
Reset Operation .......................................................................... 59
Register Summary: Reset .......................................................... 60
Register Details: Reset ............................................................... 60
DMA Controller ............................................................................. 61
DMA Features ............................................................................. 61
DMA Overview .......................................................................... 61
DMA Operation ......................................................................... 61