Datasheet

297
7593L–AVR–09/12
AT90USB64/128
• 5 - INMODE - IN Request mode
Set this bit to allow the USB controller to perform infinite IN requests when the Pipe is not frozen.
Clear this bit to perform a pre-defined number of IN requests. This number is stored in the UIN-
RQX register.
• 4 - Reserved
The value read from this bit is always 0. Do not set this bit.
• 3 - RSTDT - Reset Data Toggle
Set this bit to reset the Data Toggle to its initial value for the current Pipe.
Cleared by hardware when proceed. Clearing by software has no effect.
• 2 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 1 - Reserved
The value read from these bits is always 0. Do not set these bits.
• 0 - PEN - Pipe Enable
Set to enable the Pipe.
Clear to disable and set the pipe.
• 7-6 - PTYPE1:0 - Pipe Type
Select the type of the Pipe:
- 00: Control
- 01: Isochronous
- 10: Bulk
- 11: Interrupt
• 5-4 - PTOKEN1:0 - Pipe Token
Select the Token to associate to the Pipe
- 00: SETUP
- 01: IN
- 10: OUT
- 11: reserved
• 3-0 - PEPNUM3:0 - Pipe Endpoint Number
Set this field according to the Pipe configuration. Set the number of the Endpoint targeted by the
Pipe. This value is from 0 and 15.
Bit 76543210
PTYPE1 PTYPE0 PTOKEN1 PTOKEN0 PEPNUM3 PEPNUM2 PEPNUM1 PEPNUM0 UPCFG0X
Read/write RW RW RW RW RW RW RW RW
Initial value00000000