ATXMEGA256A3B-MH Atmel, ATXMEGA256A3B-MH Datasheet - Page 335

• Manufacturer Part Number: ATXMEGA256A3B-MH
• Description: MCU AVR 256KB FLASH A3B 64-QFN
• Manufacturer: Atmel
• Series: AVR® XMEGAr

Specifications of ATXMEGA256A3B-MH

• Core Processor: AVR
• Core Size: 8/16-Bit
• Speed: 32MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Size: 256KB (128K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 3.6 V
• Data Converters: A/D 16x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-MLF®, 64-QFN
• Processor Series: ATXMEGA256x
• Core: AVR8
• Data Bus Width: 8 bit, 16 bit
• Data Ram Size: 16 KB
• Interface Type: I2C, SPI, USART
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 49
• Number Of Timers: 7
• Operating Supply Voltage: 1.6 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• On-chip Dac: 12 bit, 2 Channel
• For Use With: ATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ATXMEGA256A3B-MU; ATXMEGA256A3B-MU

8077H–AVR–12/09
Table 27-6.
• Bit 5 - AC1STATE: Analog Comparator 1 Current State
This bit shows the current state of the input signal to Analog Comparator 1.
• Bit 4 - AC0STATE: Analog Comparator 0 Current State
This bit shows the current state of the input signal to Analog Comparator 0.
• Bit 3 - Reserved
This bit is unused and reserved for future use. For compatibility with future devices, always write
this bit to zero when this register is written.
• Bit 2 - WIF: Analog Comparator Window Interrupt Flag
This is the interrupt flag for the Window Mode. WIF is set according to the WINTMODE setting in
the
page
The WIF is automatically cleared when the analog comparator window interrupt vector is exe-
cuted. The flag can also be cleared by writing a one to its bit location.
• Bit 1 - AC1IF: Analog Comparator 1 Interrupt Flag
This is the interrupt flag for Analog Comparator 1. AC1IF is set according to the INTMODE set-
ting in the corresponding
page
The AC1IF is automatically cleared when the analog comparator 1 interrupt vector is executed.
The flag can also be cleared by writing a one to its bit location.
• Bit 0 - AC0IF: Analog Comparator 0 Interrupt Flag
This is the interrupt flag for Analog Comparator 0. AC0IF is set according to the INTMODE set-
ting in the corresponding
page
The AC0IF is automatically cleared when the analog comparator interrupt vector is executed.
The flag can also be cleared by writing a one to its bit location.
Section 27.9.5 ”WINCTRL – Analog Comparator Window Function Control Register” on
WSTATE[1:0]
334.
331.
331.
00
01
10
11
Analog Comparator Window Mode Current State
Group Configuration
Section 27.9.1 ”ACnCTRL – Analog Comparator n Control Register” on
Section 27.9.1 ”ACnCTRL – Analog Comparator n Control Register” on
BELOW
ABOVE
INSIDE
-
Signal is inside window
Description
Signal is above window
Signal is below window
Reserved
XMEGA A
335