ATA6844-DK Atmel, ATA6844-DK Datasheet - Page 8

• Manufacturer Part Number: ATA6844-DK
• Description: Power Management IC Development Tools BLDC Motor Drvr Brd
• Manufacturer: Atmel
• Type: Motor / Motion Controllers & Driversr

Specifications of ATA6844-DK

• Rohs: yes
• Product: Development Kits
• Tool Is For Evaluation Of: ATA6844, ATmega32M1, ATmega32U2
• Input Voltage: 3.3 V, 5 V, 12 V
• Description/function: Atmel ATA6844-DK BLDC Motor Control Kit
• Interface Type: LIN, UART, USB
• Factory Pack Quantity: 1

6. The Atmel Microcontroller ATmega32M1
8
Atmel ATA6843/ATA6844
The Atmel
motor control applications with CAN and LIN connectivity. Based on high-performance AVR
8-bit RISC architecture, the Atmel ATmega32M1 integrates all of the basic peripherals needed
for complex algorithm requirements. It integrates analog blocks such as 10-bit ADC, with dif-
ferential amplifiers and programmable gain options. Analog comparators with selectable
comparison levels, and interrupts on pin change I/Os. Clocked up to 64MHz, the 12-bit versa-
tile synchronous Power Stage Controller generates six complementary programmable
high-speed and precision signals to control a motor's three half bridges. A frequency of 64kHz
can be achieved, with a resulting duty cycle resolution of about 1/1000. A comparator can
serve as overcurrent detection. The reference level can be fixed using the DAC output. Hard-
ware fault detection will automatically and immediately put the motor in a safe position in case
a failure is detected.
The microcontrollers provide all necessary resources to control BLDC motors in their system
environments.
The Main Features of the Atmel ATmega32M1
•
•
•
Note:
Data and Non-Volatile Program Memory
Peripheral Features
Special Microcontroller Features
– 32K Bytes Flash of In-system Programmable Program Memory
– 1024 Bytes of In-system Programmable EEPROM
– 2048 Bytes Internal SRAM
– One 12-bit High Speed PSC (Power Stage Controller)
– One 8-bit General Purpose Timer/Counter with Separate Prescaler, Compare Mode, and
– One 16-bit General Purpose Timer/Counter with Separate Prescaler, Compare Mode, and
– CAN 2.0A/B with 6 Message Objects
– LIN 2.1 and 1.3 Controller or 8-bit UART
– One Master/Slave SPI Serial Interface
– 10-bit ADC with up to 11 Single-ended Channels and 3 Fully Differential ADC Channel Pairs
– 10-bit DAC for Variable Voltage Reference (Comparators, ADC)
– Four Analog Comparators with Variable Threshold Detection
– Interrupt and Wake-up on Pin Change
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Temperature Sensor
– Low Power Idle, Noise Reduction, and Power Down Modes
– Power On Reset and Programmable Brown Out Detection
– In-system Programmable via SPI Port
– Internal Calibrated RC Oscillator (8MHz)
– On-chip PLL for Fast PWM (64MHz) and CPU (16MHz)
Capture Mode
Capture Mode
• Six Non-overlapping Inverted PWM Output Channels with Flexible Dead-time
• Variable PWM Duty Cycle and Frequency
• Synchronous Update of all PWM Registers
• Auto Stop Function for Emergency Event
Refer to the Atmel ATmega32M1 data sheet for the complete description of the Atmel
ATmega32M1 microcontroller.
®
ATmega32M1 was developed to provide an integrated solution for advanced
9236A–AUTO–08/11