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FT2232C 데이터시트(PDF) 39 Page - Future Technology Devices International Ltd.

부품명 FT2232C
상세설명  Dual USB UART / FIFO I.C.
PDF  51 Pages
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제조업체  FTDI [Future Technology Devices International Ltd.]
홈페이지  http://www.ftdichip.com
Logo FTDI - Future Technology Devices International Ltd.

FT2232C 데이터시트(HTML) 39 Page - Future Technology Devices International Ltd.

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DS2232C Version 1.4
© Future Technology Devices International Ltd. 2005 Page 39 of 54
FT2232C Dual USB UART / FIFO I.C.
Enabling
Synchronous Bit-Bang mode is enabled using Set Bit Bang Mode driver command. A hex value of 4 will enable it, and
a hex value of 0 will reset the device. See application note
AN2232C-02, “Bit Mode Functions for the FT2232C” for
more details and examples.
Figure 25 - Synchronous Bit Bang Mode Signal Timing
Clk Time
D7..0
t1
t2
t3
t4
t5
t6
WR#
RD#
Current Data
New Data
Time
Description
t1
Current pin state is read
t2
RD# is set inactive
t3
RD# is set active again, and any pins that are output will change to the new data.
t4
Clock state for data setup
t5
WR# goes active
t6
WR# goes inactive
The internal RD# and WR# strobes are brought out of the device to allow external logic to be clocked by accesses to
the bit-bang IO bus.



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