Atmel SAM4L-EK Atmel ATSAM4L-EK ATSAM4L-EK Data Sheet
Product codes
ATSAM4L-EK
426
42023E–SAM–07/2013
ATSAM4L8/L4/L2
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
• 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).
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