SAM4L Datasheet, PDF (420/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU

17.7.3.18 Pipe n IN Request Register
Register Name:
UPINRQn, n in [0..7]
Access Type:
Read/Write
Offset:
0x0650 + (n * 0x04)
Reset Value:
0x00000001
ATSAM4L4/L2
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
7
6
5
4
3
2
1
0
INRQ
• INMODE: IN Request Mode
Writing a zero to this bit will perform a pre-defined number of IN requests. This number is the INRQ field.
Writing a one to this bit will allow the USBC to perform infinite IN requests when the pipe is not frozen.
• INRQ: IN Request Number before Freeze
This field contains the number of IN transactions before the USBC freezes the pipe. The USBC will perform INRQ IN requests
before freezing the pipe. This counter is automatically decreased by 1 each time an IN request has been successfully
performed.
This register has no effect when the INMODE bit is 1(infinite IN requests generation till the pipe is not frozen).
42023C–SAM–02/2013
420