User's Manual

Smart Machine Smart Decision
SIM5320_Hardware Design_V1.01 2011-11-10
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SPI_MOMI_DATA 1.65 1.8 1.95
SPI_MIMO_DATA 1.65 1.8 1.95
Table 15: Pin description
3.8 GPIO Interface
SIM5320AD 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.
3.8.1 Pin Description
Table 16: Electronic characteristic
Note: If more GPIOs need to be used, users can configure GPIO on other multiple function interfaces,. 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