AT90USB646-MUR Atmel, AT90USB646-MUR Datasheet - Page 299

• Manufacturer Part Number: AT90USB646-MUR
• Description: MCU AVR 64K FLASH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® 90USBr

Specifications of AT90USB646-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7593K–AVR–11/09
• 4 - RXRSMI - Upstream Resume Received Interrupt
Set by hardware when an Upstream Resume has been received from the Device.
Shall be cleared by software. Setting by software has no effect.
• 3 - RSMEDI - Downstream Resume Sent Interrupt
Set by hardware when a Downstream Resume has been sent to the Device.
Shall be cleared by software. Setting by software has no effect.
• 2 - RSTI - USB Reset Sent Interrupt
Set by hardware when a USB Reset has been sent to the Device.
Shall be cleared by software. Setting by software has no effect.
• 1 - DDISCI Device Disconnection Interrupt
Set by hardware when the device has been removed from the USB bus.
Shall be cleared by software. Setting by software has no effect.
• 0 - DCONNI - Device Connection Interrupt
Set by hardware when a new device has been connected to the USB bus.
Shall be cleared by software. Setting by software has no effect.
• 7 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 6 - HWUPE - Host Wake-Up Interrupt Enable
Set this bit to enable HWUP interrupt.For correct interrupt handle execution, this interrupt should
be enable only before entering power-down mode.
Clear this bit to disable HWUP interrupt.
• 5 - HSOFE - Host Start Of frame Interrupt Enable
Set this bit to enable HSOF interrupt.
Clear this bit to disable HSOF interrupt.
• 4 - RXRSME -Upstream Resume Received Interrupt Enable
Set this bit to enable the RXRSMI interrupt.
Clear this bit to disable the RXRSMI interrupt.
• 3 - RSMEDE - Downstream Resume Sent Interrupt Enable
Set this bit to enable the RSMEDI interrupt.
Clear this bit to disable the RSMEDI interrupt.
Bit
Read/Write
Initial Value
R
7
0
HWUPE
R/W
6
0
HSOFE
R/W
5
0
RXRSME
R/W
4
0
RSMEDE
R/W
3
0
RSTE
R/W
2
0
AT90USB64/128
DDISCE
R/W
1
0
DCONNE
R/W
0
0
UHIEN
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