參數(shù)資料
型號: FT2232C
廠商: Electronic Theatre Controls, Inc.
英文描述: FT2232C Dual USB UART / FIFO I.C.
中文描述: FT2232C雙USB的UART / FIFO的集成電路
文件頁數(shù): 39/51頁
文件大小: 907K
代理商: FT2232C
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
t1
t2
t3
t4
t5
t6
Description
Current pin state is read
RD# is set inactive
RD# is set active again, and any pins that are output will change to the new data.
Clock state for data setup
WR# goes active
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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