AT90USB646-AUR Atmel, AT90USB646-AUR Datasheet - Page 292
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AT90USB646-AUR
Manufacturer Part Number
AT90USB646-AUR
Description
MCU AVR 64K FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® 90USBr
Datasheet
1.AT90USB646-MU.pdf
(461 pages)
Specifications of AT90USB646-AUR
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-TQFP, 64-VQFP
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
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AT90USB64/128
Figure 23-3. Pipe activation flow:
Once the Pipe is activated (EPEN set) and, the hardware is ready to send requests to the
Device.
When configured (CFGOK = 1), only the Pipe Token (PTOKEN) and the polling interval for Inter-
rupt pipe can be modified.
A Control type pipe supports only 1 bank. Any other value will lead to a configuration error
(CFGOK = 0).
A clear of PEN will reset the configuration of the Pipe. All the corresponding Pipe registers are
reset to there reset values. Please refers to the Memory Management chapter for more details.
Note: The firmware has to configure the Default Control Pipe with the following parameters:
The firmware asks for 8 bytes of the Device Descriptor sending a GET_DESCRIPTOR request.
These bytes contains the MaxPacketSize of the Device default control endpoint and the firm-
ware re-configures the size of the Default Control Pipe with this size parameter.
• Type: Control
• Token: SETUP
• Data bank: 1
• Size: 64 Bytes
Pipe activ ated
Y es
and f reezed
(interrupt only)
Activ ation
UPCFG0X
UPCFG1X
CFGOK=1
UPCFG2X
PENABLE=1
UPCONX
PEPNUM
CFGMEM
PTOKEN
INT FRQ
PTYPE
Pipe
PSIZE
PBK
Configure the polling interval
for Interrupt pipe
Select the Pipe type:
* Type (Control, Bulk, Interrupt)
* Token (IN, OUT , SET UP)
* Endpoint number
Configure the Pipe memory:
* Pipe size
* Number of banks
No
Enable the pipe
ERROR
7593K–AVR–11/09
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