AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 301

• Manufacturer Part Number: AT90USB647-MU
• Description: MCU, 8BIT, 64K FLASH, USB, 64QFN
• Manufacturer: Atmel

Specifications of AT90USB647-MU

• Controller Family/series: AT90
• No. Of I/o's: 48
• Eeprom Memory Size: 2KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 64KB
• Oscillator Type: External, Internal
• Package: 64QFN EP
• Device Core: AVR
• Family Name: AT90
• Maximum Speed: 20 MHz
• Ram Size: 4 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 48
• Interface Type: SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4
• Lead Free Status / Rohs Status: Details

23.16.2
7593K–AVR–11/09
USB Host Pipe registers
• 7-0 - FLEN7:0 - Frame Length
The value contained the data frame length transmited.
• 7-3 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 2-0 - PNUM2:0 - Pipe Number
Select the pipe using this register. The USB Host registers ended by a X correspond then to this
number.
This number is used for the USB controller following the value of the PNUMD bit.
• 7 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 6 - P6RST - Pipe 6 Reset
Set this bit to 1 and reset this bit to 0 to reset the Pipe 6.
• 5 - P5RST - Pipe 5 Reset
Set this bit to 1 and reset this bit to 0 to reset the Pipe 5.
• 4 - P4RST - Pipe 4 Reset
Set this bit to 1 and reset this bit to 0 to reset the Pipe 4.
• 3 - P3RST - Pipe 3 Reset
Set this bit to 1 and reset this bit to 0 to reset the Pipe 3.
• 2 - P2RST - Pipe 2 Reset
Set this bit to 1 and reset this bit to 0 to reset the Pipe 2.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
FLEN7
7
0
R
7
0
7
0
-
FLEN6
P6RST
RW
6
0
R
6
0
6
0
FLEN5
P5RST
5
0
RW
R
5
0
5
0
FLEN4
P4RST
4
0
RW
R
4
0
4
0
FLEN3
P3RST
3
0
RW
R
3
0
3
0
PNUM2
FLEN2
P2RST
RW
2
0
RW
R
AT90USB64/128
2
0
2
0
PNUM1
FLEN1
P1RST
RW
1
0
RW
R
1
0
1
0
PNUM0
FLEN0
P0RST
RW
RW
0
0
R
0
0
0
0
UHFLEN
UPNUM
UPRST
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