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FT230XQ-R Datasheet(PDF) 32 Page - Future Technology Devices International Ltd. |
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FT230XQ-R Datasheet(HTML) 32 Page - Future Technology Devices International Ltd. |
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32 / 44 page  Copyright © Future Technology Devices International Limited 32 FT230X USB TO BASIC UART IC Version 1.4 Document No.: FT_000566 Clearance No.: FTDI# 260 8 Internal MTP Memory Configuration The FT230X includes an internal MTP memory which holds the USB configuration descriptors, other configuration data for the chip and also user data areas. Following a power-on reset or a USB reset the FT230X will scan its internal MTP memory and read the USB configuration descriptors stored there. In many cases, the default values programmed into the MTP memory will be suitable and no re- programming will be necessary. The defaults can be found in Section 8.1. The MTP memory in the FT230X can be programmed over USB if the values need to be changed for a particular application. Further details of this are provided from section 8.2 onwards. Users who do not have their own USB Vendor ID but who would like to use a unique Product ID in their design can apply to FTDI for a free block of unique PIDs. See TN_100 USB Vendor ID/Product ID Guidelines for more details. 8.1 Default Values The default factory programmed values of the internal MTP memory are shown in Table 8.1. Parameter Value Notes USB Vendor ID (VID) 0403h FTDI default VID (hex) USB Product UD (PID) 6015h FTDI default PID (hex) Serial Number Enabled? Yes Serial Number See Note A unique serial number is generated and programmed into the MTP memory during device final test. Pull down I/O Pins in USB Suspend Disabled Enabling this option will make the device pull down on the UART interface lines when in USB suspend mode (PWREN# is high). Manufacturer Name FTDI Product Description FT230X BASIC UART Max Bus Power Current 90mA Power Source Bus Powered Device Type FT230X USB Version 0200 Returns USB 2.0 device description to the host. Note: The device is a USB 2.0 Full Speed device (12Mb/s) as opposed to a USB 2.0 High Speed device (480Mb/s). Remote Wake Up Disabled Taking RI# low will wake up the USB host controller from suspend in approximately 20 ms. DBUS Drive Current Strength 4mA Options are 4mA, 8mA, 12mA, 16mA DBUS slew rate Slow Options are slow or fast DBUS Schmitt Trigger Normal Options are normal or Schmitt |
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