Cypress Semiconductor SL811HS Manual de usuario Pagina 8

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Cypress Semiconductor Corporation
SL811HS and SL811HST: Application Notes
©2001 Cypress Semiconductor Corporation. All rights reserved. The information
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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