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FIBOCOM SQ806-W Series Hardware Guide
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SD interface design consideration:
1.
LDO11_SD is the SD card peripheral driving power and can provide about 800mA current. Pay
attention to control the width of cable to 1mm.
2.
Pull up SD_DET with LDO5_1V8 power supply.
3.
SD is a high-speed digital signal cable, which needs to be shielded.
4.
SD cable must be of equal length; the equivalent capacitor must be less than 2pF.
3.7
GPIO
The module has rich GPIO resources and the interface level is 1.8V. The pin definition is as follows:
Table 3-11 GPIO list
Pin Name
Pin #
Reset State
Interrupt Function
GPIO_2
153
B-PD :nppukp
NO
GPIO_6
241
B-PD :nppukp
NO
GPIO_7
242
B-PD :nppukp
NO
GPIO_8
112
B-PD :nppukp
NO
GPIO_9
113
B-PD :nppukp
YES
GPIO_12
101
B-PD :nppukp
YES
GPIO_13
102
B-PD :nppukp
YES
GPIO_25
90
B-PD :nppukp
YES
GPIO_33
33
B-PD :nppukp
NO
GPIO_34
244
B-PD :nppukp
YES
GPIO_41
98
B-PD :nppukp
YES
GPIO_46
159
B-PD :nppukp
YES
GPIO_48
99
B-PD :nppukp
YES
GPIO_50
183
B-PD :nppukp
YES
GPIO_59
100
B-PD :nppukp
YES
GPIO_61
106
B-PD :nppukp
YES
