GPUSB101A

© Generalplus Technology Inc.

Proprietary & Confidential

29

Sep 24, 2014

Version: 1.4

Operation Code

Function

Comment

0xDX XX

Reserved read

*CBW Byte 15 :0xDX

*CBW Byte 16 :0xXX

*CBW Byte 29-30: GP Tag

Example:

1. Application: PC + GPUSB101A + GPF8

2. PC issue to read GPF8 status

3. *CBW Byte 15 = 0xD0 & *CBW Byte 16 = 0x00,

4. GPUSB101A will transfer two bytes data 0xD0, 0x00 to GPF8, and then continue transfer N bytes data from GPF8. N = CBW Byte

8-11 dCBWDataTransferLength:

10.5. GPUSB Interface Protocol Command List

GPUSB -> Host IC

Command

OP Code

Description

USB Plug in

C0 00

USB plug in issue

PC suspend

C0 01

USB Plug out or PC suspend issue

PC resume

C0 02

PC resume issue

Vender command Write

EX XX

Customer define

Vender command Read

DX XX

Customer define

Example Vender command Write

1.

E0 00: KEY 1 (PC issue PLAY)

2.

E0 01: KEY 2 (PC issue NEXT)

3.

E0 02: KEY 3 (PC issue PREVIOUS)

Example Vender command Read

1.

D0 00: status1 (PC read Host IC I/O status)

2.

D0 01: status2 (PC read Host IC Program status)

Host IC -> GPUSB

Command

OP Code

Description

SPI transparent mode

B0 01

Host IC issue GPUSB101A SPI transparent mode