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GPUSB101A Datasheet(PDF) 23 Page - Generalplus Technology Inc.

Part # GPUSB101A
Description  USB Bridge Controller
PDF  37 Pages
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Manufacturer  GENERALPLUS [Generalplus Technology Inc.]
Direct Link  http://www.generalplus.com
Logo GENERALPLUS - Generalplus Technology Inc.

GPUSB101A Datasheet(HTML) 23 Page - Generalplus Technology Inc.

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GPUSB101A
© Generalplus Technology Inc.
Proprietary & Confidential
23
Sep 24, 2014
Version: 1.4
dCSWSignature:
Signature that helps identify this data packet as a CSW. The
signature field shall contain the value 53425355h (little endian),
indicating CSW.
dCSWTag:
The device shall set this field to the value received in the
dCBWTag of the associated CBW.
dCSWDataResidue:
For Data-Out the device shall report in the dCSWDataResidue the
difference between the amounts of data expected as stated in the
dCBWDataTransferLength, and the actual amount of data
processed by the device. For Data-In the device shall report in
the dCSWDataResidue the difference between the amount of data
expected as stated in the dCBWDataTransferLength and the
actual amount of relevant data sent by the device.
The
dCSWDataResidue shall not exceed the value sent in the
dCBWDataTransferLength.
bCSWStatus:
bCSWStatus indicates the success or failure of the command.
The device shall set this byte to zero if the command completed
successfully.
A non-zero value shall indicate a failure during
command execution according to the following table:
10.4. Vender Command
PC <-> GPUSB
Command Block Wrapper 15
th byte-30th byte
Byte Bit
7
6
5
4
3
2
1
0
0
1
Operation Code
2
3
4
5
(MSB)
Reserved
6
7
8
(MSB)
Transfer Length
9
10
11
Command
OP Code
Description
Get IC Version
F0 10
Generalplus verify
SPI Flash Read
FD 28
SPI Flash physical read
SPI Flash Write
FD 2A
SPI Flash physical write
SPI Flash Sector Erase
FD 20
SPI Flash sector erase, erase size = 64K Bytes
SPI Flash Chip Erase
FD FF
SPI Flash sector erase, erase size = 4M Bytes
Set Vender ID
FF F0
Generalplus verify
Reserved write
Ex xx.
PC write data to Host IC
Reserved read
Dx xx
PC read data from Host IC



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