ft232hq Future Technology Devices International Ltd., ft232hq Datasheet - Page 34

• Manufacturer Part Number: ft232hq
• Description: Ft232h Single Channel Hi- Speed Usb To Multipurpose Uart/fifo Ic
• Manufacturer: Future Technology Devices International Ltd.

Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.0
Clearance No.: FTDI #199
Figure 4.11: FT1248 1-bit Mode Protocol (READ)
When SS_n is inactive the write buffer and read buffer status is reflected on the MIOSIO[0] and MISO
signals respectively. When the master wishes to initiate a data transfer, SS_n becomes active. As soon as
SS_n becomes active the SPI slave immediately stops driving the MIOSIO[0] signal and SPI master is not
allowed to begin driving the MIOSIO[0] signal until the first clock edge, this ensures that bus contention
is avoided.
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