参数资料
型号: ADZS-ENCODE-EX3
厂商: Analog Devices Inc
文件页数: 38/58页
文件大小: 0K
描述: BOARD EXTENDER VIDEO ENCODER EI3
标准包装: 1
系列: EZ-Extender®
附件类型: 扩展板
适用于相关产品: EZ 板
Software-Controlled Switches (SoftConfig)
AD7879 SPI Chip Select
The AD7879 SPICS connects the chip select pin of the SPI of the AD7879
touch screen controller to one of three SPI select pins of the processor. U10
ports GPE0 , GPE1 , and GPE2 are used to select the connection to the appro-
priate SPICS signal via the U39 bus switch.
AD7147 Interrupt Signal
The AD7147 INT signal connects the interrupt signal of the AD7147
touch controller to one of eight GPIO pins of the processor. U10 ports
GPB0–7 select the connection to the appropriate GPIO signal via the U37
and U38 bus switches.
ADXL345 Interrupt Signals
The ADXL345 INT1 and INT2 connect the interrupt signals of the
ADXL345 accelerometer to one of eight GPIO pins of the processor. U10
ports GPC0–7 and GPD0–7 select the connection to the appropriate GPIO
signal via the U33–36 bus switch.
ADXL345 TWI/SPI Mode Select
The ADXL345 TWI/SPI mode select pin configures the interface con-
nected to the ADXL345 accelerometer. When the accelerometer’s
interface is configured for SPI, the appropriate SPICS must also be
configured.
To configure the ADXL345 accelerometer for operating in SPI mode, the
~ ADXL345_SPI_MODE signal ( U10 port GPF3 ) is driven low to enable the U45
bus switch.
To configure the ADXL345 accelerometer for operating in TWI mode,
the ~ ADXL345_TWI_MODE signal ( U10 port GPF4 ) is driven high to enable the
U44 TWI switch.
2-14
WVGA/LCD EI3 Extender Board Manual
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