Datasheet

632
AT32UC3A
30.8.3.19 USB Pipe X IN Request Register (UPINRQX)
Offset: 0x0650 + X . 0x04
Register Name: UPINRQX, X in [0..6]
Access Type: Read/Write
Reset Value: 0x00000000
• INRQ: IN Request Number before Freeze
Enter the number of IN transactions before the USB controller freezes the pipe. The USB controller will perform (INRQ+1)
IN requests before to freeze the Pipe. This counter is automatically decreased by 1 each time a IN request has been suc-
cessfully performed.
This register has no effect when the INMODE bit is set (infinite IN requests generation till the pipe is not frozen).
• 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 the INRQ field.
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– – – – – – – –
15 14 13 12 11 10 9 8
– – – – – – – INMODE
rw
0
7 6 5 4 3 2 1 0
INRQ
rwu
0 0 0 0 0 0 0 0
32058K
AVR32-01/12