Altera cyclone V Technical Reference page 2574

18-484
diepctl5
Bit
16
dpid
15
usbactep
10:0
mps
Altera Corporation
Name
Applies to interrupt/bulk IN and OUT endpoints
only. Contains the PID of the packet to be received or
transmitted on this endpoint. The application must
program the PID of the first packet to be received or
transmitted on this endpoint, after the endpoint is
activated. The applications use the SetD1PID and
SetD0PID fields of this register to program either
DATA0 or DATA1 PID. 0: DATA0 1: DATA1This field
is applicable both for Scatter/Gather DMA mode and
non-Scatter/Gather DMA mode. Even/Odd (Micro)
Frame (EO_FrNum) In non-Scatter/Gather DMA
mode: Applies to isochronous IN and OUT endpoints
only. Indicates the (micro)frame number in which the
core transmits/receives isochronous data for this
endpoint. The application must program the even/
odd (micro) frame number in which it intends to
transmit/receive isochronous data for this endpoint
using the SetEvnFr and SetOddFr fields in this
register. 0: Even (micro)frame 1: Odd (micro)frame
When Scatter/Gather DMA mode is enabled, this
field is reserved. The frame number in which to send
data is provided in the transmit descriptor structure.
The frame in which data is received is updated in
receive descriptor structure.
Value
0x0
0x1
Indicates whether this endpoint is active in the
current configuration and interface. The core clears
this bit for all endpoints (other than EP 0) after
detecting a USB reset. After receiving the SetConfigu‐
ration and SetInterface commands, the application
must program endpoint registers accordingly and set
this bit.
Value
0x0
0x1
Applies to IN and OUT endpoints. The application
must program this field with the maximum packet
size for the current logical endpoint. This value is in
bytes.
Description
Description
Endpoint Data PID not active
Endpoint Data PID active
Description
Not Active
USB Active Endpoint
cv_5v4
2016.10.28
Access Reset
RO 0x0
RW 0x0
RW 0x0
USB 2.0 OTG Controller
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