SAM3A4C Atmel Corporation, SAM3A4C Datasheet - Page 1133

• Manufacturer Part Number: SAM3A4C
• Manufacturer: Atmel Corporation

39.6.2.10
Name:
Address:
Access:
• NBTRANS: Number of transaction per microframe for isochronous endpoint
This field shall be written to the number of transaction per microframe to perform high-bandwidth isochronous transfer
This field can be written only for endpoint that have this capability (see UOTGHS_FEATURES.ENHBISOx bit). This field is
0 otherwise.
This field is irrelevant for non-isochronous endpoint.
• EPTYPE: Endpoint Type
This field shall be written to select the endpoint type:
This field is cleared upon receiving a USB reset.
• AUTOSW: Automatic Switch
This bit is cleared upon receiving a USB reset.
0: The automatic bank switching is disabled.
1: The automatic bank switching is enabled.
• EPDIR: Endpoint Direction
This bit is cleared upon receiving a USB reset.
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
31
23
15
Value
Value
–
–
–
7
–
0
1
2
3
0
1
2
3
Device Endpoint x Configuration Register
UOTGHS_DEVEPTCFGx [x=0..9]
0x400AC100
Read-write
Name
30
22
14
–
–
6
0_TRANS
1_TRANS
2_TRANS
3_TRANS
INTRPT
Name
CTRL
NBTRANS
BLK
ISO
EPSIZE
29
21
13
–
–
5
Description
reserved to endpoint that does not have the high-bandwidth isochronous capability.
default value: one transaction per micro-frame.
2 transactions per micro-frame. This endpoint should be configured as double-bank.
3 transactions per micro-frame. This endpoint should be configured as triple-bank.
Description
Control
Isochronous
Bulk
Interrupt
28
20
12
–
–
4
EPTYPE
27
19
11
–
–
3
EPBK
26
18
10
–
–
–
2
AUTOSW
ALLOC
25
17
–
–
9
1
SAM3X/A
SAM3X/A
EPDIR
24
16
–
–
8
0
–
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