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FIBOCOM SU806 Series Hardware Guide
Page 32 of 79
The other level
translator
circuit is shown as Figure 3-11, The rest input and output circuit design of dotted
line please refer to solid line part, but pay attention to signal connection direction.
Figure 3-11 Level shift reference design 2
3.5
SPI
SU806 series module provides one master only SPI interface, the pin definition is shown in the following
table:
Table 3-9 SPI pin definition
Pin Name
Pin
Number
I/O
Description
Note
SPI_CLK
116
DO
SPI clock
-
SPI_CS
117
DO
SPI chip selects
-
SPI_MISO
118
DI
SPI master input slave output
-
SPI_MOSI
119
DO
SPI master output slave input
-
3.6
(U)SIM
The SU806 series module supports two (U)SIM cards, dual-SIM dual-standby single-active (default
double) and both support hot plug (default off).