Datasheet

Software-Controlled Switches (SoftConfig)
2-12 WVGA/LCD EI3 Extender Board Manual
Table 2-5. Output Signals of GPIO Expander (U10 Port E)
Bit Signal Name Description FET Component
Connected
Default
0
~TOUCH_SCREEN_SPICS_
SPICSA
Touch screen SPI chip select U39 U19 OFF
1
~TOUCH_SCREEN_SPICS_
SPICSB
Touch screen SPI chip select U39 U19 OFF
2
~TOUCH_SCREEN_SPICS_
SPICSC
Touch screen SPI chip select U39 U19 OFF
3
~LCD_SPICS_SPICSA LCD SPI chip select U31 LCD OFF
4
~LCD_SPICS_SPICSB LCD SPI chip select U31 LCD OFF
5
~LCD_SPICS_SPICSC LCD SPI chip select U31 LCD OFF
6Not Used
7 PPICLK_DIR Selects if the PPI clock is an
input or output on the
extender
U1 U8
Input
Table 2-6. Output Signals of GPIO Expander (U10 Port F)
Bit Signal Name Description FET Component
Connected
Default
0
~ADXL_SPICS_SPICSA Accelerometer SPI chip select U32 U27 OFF
1
~ADXL_SPICS_SPICSB Accelerometer SPI chip select U32 U27 OFF
2
~ADXL_SPICS_SPICSC Accelerometer SPI chip select U32 U27 OFF
3
~ADXL_SPI_MODE Enable SPI on accelerometer U45 U27 OFF
4
ADXL_TWI_MODE Enable TWI on accelerometer U44 U27 OFF
5
~24_BIT_LCD_MODE 24-bit LCD mode U16 LCD OFF
6
~18_BIT_LCD_MODE 18-bit LCD mode U15 LCD OFF
7
~16_BIT_LCD_MODE 16-bit LCD mode U14 LCD OFF