FT2232D datasheet(39/56 Pages) FTDI

поискавой системы для электроныых деталей

FT2232D датащи(PDF) 39 Page - Future Technology Devices International Ltd.

номер детали	FT2232D

подробное описание детали	Dual USB UART/FIFO I.C.

PDF	56 Pages

Scroll/Zoom	100%

производитель	FTDI [Future Technology Devices International Ltd.]

домашняя страница	http://www.ftdichip.com

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39 / 56 page

DS2232D Version 0.91

FT2232D Dual USB UART / FIFO I.C.

Synchronous Bit-Bang Mode

With Synchronous Bit-Bang mode data will only be sent out by the FT2232D if there is space in the device for data to

be read from the pins. This Synchronous Bit-Bang mode will read the data bus pins first, before it sends out the byte

that has just been transmitted. It is therefore 1 byte behind the output, and so to read the inputs for the byte that you

have just sent, another byte must be sent.

For example :-

(1) Pins start at 0xFF

Send 0x55,0xAA

Pins go to 0x55 and then to 0xAA

Data read = 0xFF,0x55

(2) Pins start at 0xFF

Send 0x55,0xAA,0xAA

(repeat the last byte sent)

Pins go to 0x55 and then to 0xAA

Data read = 0xFF,0x55,0xAA

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