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USB CONTROLLER
31 30 29 28 27 26 25 24
S
S
S
S
D
S
V
V
D
E
E
T
S
O
S
T
N
S
E
R
T
E
D
T
T
D
A
N
A
Y
L
D
L
L
L
10-24
23
I
O
N
R
R
D
D
Y
Y
[3:0] MAXP value (MAXP)
[3:0]value x 8 = max packet size
[6:4] Reserved
[7] MAXP value SETting enable (MAXPSET)
0 = MAXP value isn't changed
1 = MAXP value is changed
[8:23] Reserved
[24] Out packet ReaDY (ORDY)
0 = Not received packet, or in IN mode
1 = Received packet from host
[25] IN packet ReaDY (INRDY)
0 = Not yet loaded packet to EP0 FIFO, or in OUT mode
1 = Loading packet to EP0 FIFO completed
[26] SenT STALL (STSTALL)
0 = No stall token is transmitted.
1 = Control transaction is ended due to a protocol violation.
[27] Data END (DEND)
0 = Not dataend stage
1 = Dataend stage
[28] SETup END (SETEND)
0 = Normal operation state
1 = Setup end stage
[29] SenD STALL (SDSTALL)
0 = Normal operation state
1 = Go to stall token transmt state
[30] SerViced Out ReaDY (SVORDY)
0 = No operation
1 = ORDY bit clear
[31] SerViced SETup end (SVSET)
0 = No operation
1 = SETEND bit clear
Figure 10-12. USBEP0CSR Register
S3C2500B
8
7
6
4
3
M
M
A
A
X
X
P
P
S
E
T
0
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