Application Kit TC2X5
Hardware Manual
Application Kit Information
User’s Manual
3-3
V 2.0, 2013-05
Bit 14 must be 0, this will be indicate a single access.
Bit 13...Bit 7 is the 8 bit register number which will be read
Bit 5...Bit 0 are dummy bits to setup the register number.
second transfer must have 26 bits:
Bit 25...Bit 16 are dummy bits which are needed to readout the register value
Bit 15...Bit 0 are dummy bits to transfer the readed value.
To speedup the reading (e.g. reading from ram of display controller) it is possible to make
a endless transfer. This is done by this:
first 16 bit transfer:
first transfer has 16 bit:
Bit 15 must be 1, this will be indicate a read access.
Bit 14 must be 1, this will be indicate an endless access.
Bit 13...Bit 7 is the 8 bit register number which will be read
Bit 5...Bit 0 are dummy bits to setup the register number.
second 10 bit transfer:
Bit 9...Bit 0are dummy bits which are needed to readout the register value
Now you need to transfer only 16bit values for the registers. With the each 16 bit transfer
you get a value. With the last transfer you have dummy read which you don’t get the
result.
The endless mode can only be leave by a rising edge of SCLK0 with SLSO08 set to high.
This can be done by a dummy transfer to any other chip select or by a transfer from the
touch controller.
3.3.3
Touch controller
The touch of display is connected to an Touch controller ADS7843. This controller is
connected via the QSPI0 and SLSO09 to the microcontroller. For motre information
about the delivered values from the touch controller please see the datasheet of
ADS7348.
3.4
Micro SD card
The board has a slot to use the board with an micro SD card. The card will be used in
SPI mode only. The SD is connectred to QSPI1 with chip select 10 of QSPI1.
Please see additional literature jow to use a SD card in SPI mode.
3.5
LEDs
There are 8 LEDs on board:
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