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FT230XQ-R Datasheet(PDF) 33 Page - Future Technology Devices International Ltd. |
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FT230XQ-R Datasheet(HTML) 33 Page - Future Technology Devices International Ltd. |
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33 / 44 page  Copyright © Future Technology Devices International Limited 33 FT230X USB TO BASIC UART IC Version 1.4 Document No.: FT_000566 Clearance No.: FTDI# 260 Parameter Value Notes Enable CBUS Drive Current Strength 4mA Options are 4mA, 8mA, 12mA, 16mA CBUS slew rate Slow Options are slow or fast CBUS Schmitt Trigger Enable Normal Options are normal or Schmitt Load VCP Driver Enabled** Makes the device load the VCP driver interface for the device. CBUS0 TXDEN Default configuration of CBUS0 – Transmit data enable for RS485 CBUS1 RXLED# Default configuration of CBUS1 – Receive LED drive. CBUS2 TXLED# Default configuration of CBUS2 – Transmit LED drive. CBUS3 SLEEP# Default configuration of CBUS3 – SLEEP#, goes active low when the device is in suspend Invert TXD Disabled Signal on this pin becomes TXD# if enable. Invert RXD Disabled Signal on this pin becomes RXD# if enable. Invert RTS# Disabled Signal on this pin becomes RTS if enable. Invert CTS# Disabled Signal on this pin becomes CTS if enable. Table 8.1 Default Internal MTP Memory Configuration **VCP disabled in Rev B silicon in error 8.2 Methods of Programming the MTP Memory 8.2.1 Programming the MTP memory over USB The MTP memory on all FT-X devices can be programmed over USB. This method is the same as for the EEPROM on other FTDI devices such as the FT232R. No additional hardware, connections or programming voltages are required. The device is simply connected to the host computer in the same way that it would be for normal applications, and the FT_Prog utility is used to set the required options and program the device. The FT_Prog utility is provided free-of-charge from the FTDI website, and can be found at the link below. The user guide is also available at this link. http://www.ftdichip.com/Support/Utilities.htm#FT_Prog Additionally, D2XX commands can be used to program the MTP memory from within user applications. For more information on the commands available, please see the D2XX Programmers Guide below. http://www.ftdichip.com/Support/Documents/ProgramGuides/D2XX_Programmer's_Guide(FT_000071).p df |
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