ADUC7126 Analog Devices, ADUC7126 Datasheet - Page 2

• Manufacturer Part Number: ADUC7126
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, Large Memory, ARM7TDMI MCU with Enhanced IRQ Handler
• Manufacturer: Analog Devices

Specifications of ADUC7126

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Gpio Pins: 40
• Adc # Channels: 16
• Other: PWM

ADuC7124/ADuC7126
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
General Description ......................................................................... 4
Specifications ..................................................................................... 5
Absolute Maximum Ratings .......................................................... 13
Pin Configurations and Function Descriptions ......................... 14
Typical Performance Characteristics ........................................... 23
Terminology .................................................................................... 26
Overview of the ARM7TDMI Core ............................................. 27
Memory Organization ................................................................... 29
ADC Circuit Overview .................................................................. 37
Timing Specifications .................................................................. 8
ESD Caution ................................................................................ 13
ADC Specifications .................................................................... 26
DAC Specifications..................................................................... 26
Thumb Mode (T) ........................................................................ 27
Long Multiply (M) ...................................................................... 27
EmbeddedICE (I) ....................................................................... 27
Exceptions ................................................................................... 27
ARM Registers ............................................................................ 27
Interrupt Latency ........................................................................ 28
Memory Access ........................................................................... 29
Flash/EE Memory ....................................................................... 29
SRAM ........................................................................................... 29
Memory Mapped Registers ....................................................... 29
Transfer Function ....................................................................... 37
Typical Operation ....................................................................... 38
MMRs Interface .......................................................................... 38
Converter Operation .................................................................. 40
Driving the Analog Inputs ........................................................ 41
Calibration ................................................................................... 42
Temperature Sensor ................................................................... 42
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Nonvolatile Flash/EE Memory ..................................................... 44
Other Analog Peripherals .............................................................. 51
Digital Peripheral ........................................................................... 58
Processor Reference Peripherals ................................................... 84
Hardware Design Considerations .............................................. 100
Outline Dimensions ..................................................................... 103
Band Gap Reference ................................................................... 43
Programming .............................................................................. 44
Flash/EE Memory Security ....................................................... 45
Flash/EE Control Interface ....................................................... 45
Execution Time from SRAM and Flash/EE ............................ 48
Reset and Remap ........................................................................ 48
DAC .............................................................................................. 51
Power Supply Monitor ............................................................... 53
Comparator ................................................................................. 53
Oscillator and PLL—Power Control ........................................ 54
General-Purpose Input/Output................................................ 58
Serial Port Mux ........................................................................... 60
UART Serial Interface ................................................................ 60
Serial Peripheral Interface ......................................................... 66
I
PWM General Overview ........................................................... 78
Programmable Logic Array (PLA)........................................... 81
Interrupt System ......................................................................... 84
IRQ ............................................................................................... 84
Fast Interrupt Request (FIQ) .................................................... 85
Vectored Interrupt Controller (VIC) ....................................... 86
Timers .......................................................................................... 91
External Memory Interfacing ................................................... 96
Power Supplies .......................................................................... 100
Grounding and Board Layout Recommendations ............... 101
Clock Oscillator ........................................................................ 101
Power-On Reset Operation ..................................................... 102
Ordering Guide ........................................................................ 104
2
C ................................................................................................. 70