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SAM4L Datasheet, PDF (386/1185 Pages) ATMEL Corporation – ATSAM ARM-based Flash MCU
17.7.2.8 Endpoint Enable/Reset Register
Register Name:
UERST
Access Type:
Read/Write
Offset:
0x001C
Reset Value:
0x00000000
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
-
EPEN8(1)
7
EPEN7(1)
6
EPEN6(1)
5
EPEN5(1)
4
EPEN4(1)
3
EPEN3(1)
2
EPEN2(1)
1
EPEN1(1)
0
EPEN0
• EPENn: Endpoint n Enable
Note: 1. EPENn bits are within the range from EPEN0 to EPEN7.
Writing a zero to this bit will disable the endpoint n (USB requests will be ignored), and resets the endpoints registers (UECFGn,
UESTAn, UECONn), but not the endpoint configuration (EPBK, EPSIZE, EPDIR, EPTYPE).
Writing a one to this bit will enable the endpoint n.
0: The endpoint n is disabled.
1: The endpoint n is enabled.
42023C–SAM–02/2013
386