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FT121Q-R Scheda tecnica(PDF) 17 Page - Future Technology Devices International Ltd. |
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FT121Q-R Scheda tecnica(HTML) 17 Page - Future Technology Devices International Ltd. |
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17 / 46 page  Copyright © 2014 Future Technology Devices International Limited 17 Document No.: FT_000648 FT121 ENHANCED USB DEVICE CONTROLLER WITH SPI SLAVE IC Datasheet Version 1.2 Clearance No.: FTDI# 312 6 Commands and Registers The FT121 supports two command sets: a default command set (Table 6.1) and an enhanced command set (Table 6.2). The enhanced command set is activated if any of the Set Endpoint Configuration commands (0xB0-0xBF) are received by the FT121. Otherwise, the default command set shall be valid. 6.1 Command Summary Command Name Target Code (hex) Data phase Initialization Commands Set Address Enable Device D0h Write 1 byte Set Endpoint Enable Device D8h Write 1 byte Set Mode Device F3h Write 2 bytes Set Interrupt Device FBh Write 1 byte Data Flow Commands Read Interrupt Register Device F4h Read 2 bytes Select Endpoint Endpoint 0 OUT 00h Read 1 byte (optional) Endpoint 0 IN 01h Read 1 byte (optional) Endpoint 1 OUT 02h Read 1 byte (optional) Endpoint 1 IN 03h Read 1 byte (optional) Endpoint 2 OUT 04h Read 1 byte (optional) Endpoint 2 IN 05h Read 1 byte (optional) Read Last Transaction Status Endpoint 0 OUT 40h Read 1 byte Endpoint 0 IN 41h Read 1 byte Endpoint 1 OUT 42h Read 1 byte Endpoint 1 IN 43h Read 1 byte Endpoint 2 OUT 44h Read 1 byte Endpoint 2 IN 45h Read 1 byte Read Endpoint Status Endpoint 0 OUT 80h Read 1 byte Endpoint 0 IN 81h Read 1 byte Endpoint 1 OUT 82h Read 1 byte Endpoint 1 IN 83h Read 1 byte Endpoint 2 OUT 84h Read 1 byte |
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