Altera cyclone V Technical Reference page 2301

cv_5v4
2016.10.28
31 30
spltena
RW 0x0
15 14
xactpos
RW 0x0
hcsplt5 Fields
Bit
31
spltena
16
compsplt
15:14
xactpos
13:7
hubaddr
USB 2.0 OTG Controller
Send Feedback
29 28 27 26
13 12 11 10
hubaddr
RW 0x0
Name
The application sets this field to indicate that this
channel is enabled to perform split transactions.
Value
0x0
0x1
The application sets this field to request the OTG host
to perform a complete split transaction.
Value
0x0
0x1
This field is used to determine whether to send all,
first, middle, or last payloads with each OUT transac‐
tion.
Value
0x0
0x1
0x2
0x3
This field holds the device address of the transaction
translator's hub.
Bit Fields
25 24 23 22
Reserved
9 8 7 6
Description
Description
Split not enabled
Split enabled
Description
No split transaction
Split transaction
Description
Mid. This is the middle payload of this
transaction (which is larger than 188 bytes)
End. This is the last payload of this transac‐
tion (which is larger than 188 bytes)
Begin. This is the first data payload of this
transaction (which is larger than 188 bytes)
All. This is the entire data payload is of this
transaction (which is less than or equal to 188
bytes)
hcsplt5
21 20 19 18
5 4 3 2
prtaddr
RW 0x0
Access
RW
RW
RW
RW
18-211
17 16
compsplt
RW 0x0
1 0
Reset
0x0
0x0
0x0
0x0
Altera Corporation