Specifications

WM_PRJ_Q2400_PTS_001 - 003
6th November 2002
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2.4 LCD interface
The WISMO Quik Q2403 Series can be connected to a LCD module driver
through either a SPI bus or a two wires interface.
2.4.1 SPI bus
The SPI bus includes a CLK signal, an IO signal and an EN signal complying
with SPI bus standard. The maximum speed transfer is 3.25Mb/s.
Pin description
Signal Pin number I/O I/O type Description
SPI_CLK 10 O 1X SPI Serial Clock
SPI_IO 8 I/O CMOS / 1X SPI Data
SPI_EN 28 O 1X SPI Enable
2.4.2 Two wires interface
The two wires interface includes a CLK signal and a DATA signal complying
with a standard 96KHz interface. The maximum speed transfer is 400Kb/s.
Pin description
Signal Pin number I/O I/O type Description
SCL 10 O 1X Serial Clock
SDA 8 I/O CMOS / 1X Data
2.5 SPI Auxiliary bus
A second SPI Chip Enable (called SPI_AUX) has to be used to add a SPI
peripheral to the WISMO Quik Q2403 Series. The maximum speed transfer is
3.25Mb/s.
Pin description
Signal Pin number I/O I/O type Description
SPI_CLK 10 O 1X SPI Serial Clock
SPI_IO 8 I/O CMOS / 1X SPI Data
SPI_AUX 26 O 1X SPI Aux. Enable
A
A
A
T
T
T
A
A
A
T
T
T