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Preliminary
S3C2451X RISC MICROPROCESSOR
USB2.0 DEVICE
17-21
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.
ENDPOINT CONTROL REGISTER (ECR)
The endpoint control register is useful for controlling an endpoint both in normal operation and test case. Putting
an endpoint in specific operation mode can be accomplished through the endpoint control register.
Register Address
R/W
Description
Reset
Value
ECR 0x4980_0030
R/W
Endpoint
Control Register
0x0
ECR Bit
R/W
Description
Initial
State
[31:13]
Reserved
INPKTHLD
[12]
R/W
The MCU can control Tx FIFO status through this bit. If this
bit is set to one, USB does not send IN data to Host.
0 = The USB can send IN data to Host according to
IN FIFO status(normal operation)
1 = The USB sends NAK handshake to Host
regardless of IN FIFO status.
0
OUTPKTHLD
[11]
R/W
The MCU can control Rx FIFO Status through this bit. If this
bit is set to one, USB does not accept OUT data from Host.
0 = The USB can accept OUT data from Host
according to OUT FIFO status(normal operation)
1 = The USB does not accept OUT data from Host.
0
[10:8]
reserved
DUEN
[7]
R/W
Dual FIFO mode Enable
0 = Dual Disable(Single mode)
1 = Dual Enable
0
FLUSH [6]
R/W
FIFO
Flush
FIFO is flushed when this bit is set to 1.
This bit is automatically cleared after MCU writes 1.
0
[5:2]
reserved