AT90PWM316-16MU Atmel, AT90PWM316-16MU Datasheet - Page 262

• Manufacturer Part Number: AT90PWM316-16MU
• Description: MCU AVR 16K FLASH 16MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® 90PWM Lightingr

Specifications of AT90PWM316-16MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 27
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 11x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 32-QFN
• Processor Series: AT90PWMx
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, USART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 2
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 11 Channel
• Cpu Family: 90P
• Device Core: AVR
• Device Core Size: 8b
• Frequency (max): 16MHz
• Total Internal Ram Size: 1KB
• # I/os (max): 53
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 32
• Package Type: QFN EP
• For Use With: ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOICATAVRMC200 - KIT EVAL FOR AT90PWM3 ASYNCATAVRFBKIT - KIT DEMO BALLAST FOR AT90PWM2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22.4.2
22.4.2.1
262
AT90PWM216/316
Digital to Analog Converter input Register – DACH and DACL
DALA = 0
In accordance with the
update of the DAC input values. The update will be generated by the rising edge of the selected
interrupt flag whether the interrupt is enabled or not.
Table 22-1.
• Bit 2 – DALA: Digital to Analog Left Adjust
Set this bit to left adjust the DAC input data.
Clear it to right adjust the DAC input data.
The DALA bit affects the configuration of the DAC data registers. Changing this bit affects the
DAC output on the next DACH writing.
• Bit 1 – DAOE: Digital to Analog Output Enable bit
Set this bit to output the conversion result on D2A,
Clear it to use the DAC internally.
• Bit 0 – DAEN: Digital to Analog Enable bit
Set this bit to enable the DAC,
Clear it to disable the DAC.
DACH and DACL registers contain the value to be converted into analog voltage.
Writing the DACL register forbid the update of the input value until DACH has not been written
too. So the normal way to write a 10-bit value in the DAC register is firstly to write DACL the
DACH.
In order to work easily with only 8 bits, there is the possibility to left adjust the input value. Like
this it is sufficient to write DACH to update the DAC value.
Bit
Read/Write
Initial Value
DATS2
0
0
0
0
1
1
1
1
DATS1
0
0
1
1
0
0
1
1
DAC Auto Trigger source selection
DAC7
R/W
R/W
7
0
0
-
Table
DAC6
R/W
R/W
DATS0
0
1
0
1
0
1
0
1
6
0
0
-
22-1, these 3 bits select the interrupt event which will generate the
DAC5
R/W
R/W
5
0
0
-
Description
Analog comparator 0
Analog comparator 1
External Interrupt Request 0
Timer/Counter0 Compare Match
Timer/Counter0 Overflow
Timer/Counter1 Compare Match B
Timer/Counter1 Overflow
Timer/Counter1 Capture Event
DAC4
R/W
R/W
4
0
0
-
DAC3
R/W
R/W
3
0
0
-
DAC2
R/W
R/W
2
0
0
-
DAC9
DAC1
R/W
R/W
1
0
0
DAC8
DAC0
R/W
R/W
0
0
0
7710E–AVR–08/10
DACH
DACL