User's Manual

Smart Machine Smart Decision
SIM5320A_Hardware Design_V1.01 2011-2-29
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Table 23: Pin description
3.10 GPIO Interface
SIM5320A provides a limited number of GPIO pins. All GPIOs can be configured as inputs or outputs.
User can use AT Commands to read or write GPIOs status. Refer to ATC document for details.
3.10.1 Pin Description
Table 24: Electronic characteristic
Note: If more GPIOs need to be used, users can configure GPIO on other multiple function interfaces, such as PCM.
Please refer to GPIO list.
Pin name Pin No. Function
SPI_CS 9
SPI chip-select; not mandatory in a point-to-point connection
SPI_MISO_DATA 7
SPI master in/slave out data
SPI_CLK 6
SPI clock
SPI_MOSI_DATA 8
SPI master out/slave in data
2.6V mode
Pin name
Min Typ Max
GPIO1 2.5 2.6 2.7
GPIO4 2.5 2.6 2.7
GPIO40 2.5 2.6 2.7
GPIO41 2.5 2.6 2.7
GPIO43 2.5 2.6 2.7
GPIO44 2.5 2.6 2.7
GPIO42 2.5 2.6 2.7