Bit
7
6
5
4
3
2
1
0
FLEN7
FLEN6
FLEN5
FLEN4
FLEN3
FLEN2
FLEN1
FLEN0
UHFLEN
Read/Write
Initial Value
R
0
R
0
R
0
R
0
R
0
R
0
R
0
R
0
• 7-0 - FLEN7:0 - Frame Length
The value contained the data frame length transmited.
23.16.2 USB Host Pipe registers
Bit
7
0
6
0
5
0
4
0
3
0
2
PNUM2
RW
1
PNUM1
RW
0
PNUM0
RW
UPNUM
Read/Write
Initial Value
0
0
0
• 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.
Bit
7
6
P6RST
RW
5
P5RST
RW
4
P4RST
RW
0
3
P3RST
RW
0
2
P2RST
RW
1
P1RST
RW
0
P0RST
RW
-
UPRST
Read/Write
Initial Value
0
0
0
0
0
0
• 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.
304
AT90USB64/128
7593A–AVR–02/06
ATMEL [ ATMEL ]
