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PRELIMINARY
S3C6400X RISC MICROPROCESSOR
USB2.0 HS OTG
26-65
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Register
Address
R/W
Description
Reset Value
DIEPTSIZ0 0x7C00_0910 R/W
Device
IN
Endpoint 0 Transfer Size Register
32 bits
DIEPTSIZ0
Bit
R/W
Description
Initial State
[31:20]
Reserved
12’h0
PktCnt
[19]
R_W
Packet Count
Indicates the total number of USB packets that
constitute the Transfer Size amount of data for
endpoint 0.
This field is decremented every time a packet is read
from the TxFIFO.
1’b0
[18:7]
Reserved
12’h0
XferSize
[6:0]
R_W
Transfer Size
Indicates the transfer size in bytes for endpoint 0.
The core interrupts the application only after it has
exhausted the transfer size amount of data. The
transfer size can be set to the maximum packet size
of the endpoint, to be interrupted at the end of each
packet.
The core decrements this field every time a packet
from the external memory is written to the TxFIFO.
7’h0
DEVICE OUT ENDPOINT 0 TRANSFER SIZE REGISTER (DOEPTSIZ0)
Register
Address
R/W
Description
Reset Value
DOEPTSIZ0 0x7C00_0B10 R/W
Device
OUT
Endpoint 0 Transfer Size Register
32 bits
DOEPTSIZ0
Bit
R/W
Description
Initial State
[31]
Reserved
1’b0
SUPCnt
[30:29]
R_W
SETUP Packet Count
This field specifies the number of back-to-back
SETUP data packets the endpoint can receive.
·
2’b01 : 1 packet
·
2’b10 : 2 packets
·
2’b11 : 3 packets
2’h0
[28:20]
Reserved
9’h0
PktCnt
[19]
R_W
Packet Count
This field is decremented to zero after a packet is
written into the RxFIFO.
1’b0
[18:7]
Reserved
12’h0
XferSize
[6:0]
R_W
Transfer Size
Indicates the transfer size in bytes for endpoint 0.
The core interrupts the application only after it has
7’h0