AT90USB82-16MUR Atmel, AT90USB82-16MUR Datasheet - Page 217
AT90USB82-16MUR
Manufacturer Part Number
AT90USB82-16MUR
Description
MCU AVR USB 8K FLASH 32-QFN
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB82-16MU.pdf
(307 pages)
Specifications of AT90USB82-16MUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, PS/2, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-QFN
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, USART, debugWIRE
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
22
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK526 - KIT STARTER FOR AT90USB82/162ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK525 - KIT STARTER FOR AT90USBAT90USBKEY2 - KIT DEMO FOR AT90USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
- Current page: 217 of 307
- Download datasheet (4Mb)
AT90USB82/162
For IN Endpoint:
Set by hardware when the current bank is free, at the same time than TXIN.
Clear to send the FIFO data and to switch the bank. Setting by software has no effect.
• 6 - NAKINI - NAK IN Received Interrupt Flag
Set by hardware when a NAK handshake has been sent in response of a IN request from the
host. This triggers an USB interrupt if NAKINE is sent.
Shall be cleared by software. Setting by software has no effect.
• 5 - RWAL - Read/Write Allowed Flag
Set by hardware to signal:
- for an IN endpoint: the current bank is not full i.e. the firmware can push data into the FIFO,
- for an OUT endpoint: the current bank is not empty, i.e. the firmware can read data from the
FIFO.
The bit is never set if STALLRQ is set, or in case of error.
Cleared by hardware otherwise.
This bit shall not be used for the control endpoint.
• 4 - NAKOUTI - NAK OUT Received Interrupt Flag
Set by hardware when a NAK handshake has been sent in response of a OUT/PING request
from the host. This triggers an USB interrupt if NAKOUTE is sent.
Shall be cleared by software. Setting by software has no effect.
• 3 - RXSTPI - Received SETUP Interrupt Flag
Set by hardware to signal that the current bank contains a new valid SETUP packet. An inter-
rupt (EPINTx) is triggered (if enabled).
Shall be cleared by software to handshake the interrupt. Setting by software has no effect.
This bit is inactive (cleared) if the endpoint is an IN endpoint.
• 2 - RXOUTI / KILLBK - Received OUT Data Interrupt Flag
Set by hardware to signal that the current bank contains a new packet. An interrupt (EPINTx) is
triggered (if enabled).
Shall be cleared by software to handshake the interrupt. Setting by software has no effect.
Kill Bank IN Bit
Set this bit to kill the last written bank.
Cleared by hardware when the bank is killed. Clearing by software has no effect.
See
page 205
for more details on the Abort.
• 1 - STALLEDI - STALLEDI Interrupt Flag
Set by hardware to signal that a STALL handshake has been sent, or that a CRC error has been
detected in a OUT isochronous endpoint.
Shall be cleared by software. Setting by software has no effect.
217
7707F–AVR–11/10
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