Cypress Semiconductor SL811HS Manual do Utilizador descarregar pdf (Página 8)

Cypress Semiconductor Corporation

SL811HS and SL811HST: Application Notes

and specifications contained in this document are subject to change without

notice.

Date: 07/26/01

Revision: 1.21

Page: 8

Host Mode:

- Pin M/S must set low

- Issue HW reset.

- Set bit-7=1 of cSOFcnt register

- Data+ - switch pull-up 1.5K ohms resistor to disconnect

- Data+ and Data- switch pull-down 15k ohm resistors to ground

- Provide power to pin-1 of USB connector

Slave Mode:

- Pin M/S must set high.

- Issue HW reset.

- Data+ - switch pull-up 1.5K ohm resistor to Vdd.

- Data+ and Data- switch pull-down 15K ohm resistors to disconnect.

- Disconnect power from pin-1 of USB connector.

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Cypress Semiconductor SL811HS Manual do Utilizador Página 8