Rainbow Electronics MG260 - Manual (Page 29)

MG260 Product Specification
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2.4 System connector multiplexing
Pin # Multiplex 1 Multiplex 2 Reset State Comments
1 NC
2 NC
3 GPS_TXD0 PIO controlled
after Reset
4 GPS_RXD0 PIO controlled
after Reset
5 GPS_SCK PIO controlled
after Reset
Driven low
6 NC
7 NC
8 GPS_MOSI PIO controlled
after Reset
9 GPS_EXTINT0 Input Pull up external resistor to
GPS_VCORE
10 NC
11 GPS_MISO PIO controlled
after Reset
Driven low
12 V_EXT_CHARGE charge
13 GPS_PCS0_N PIO controlled
after Reset
Pull up external resistor to
GPS_VCORE
14 V_EXT_CHARGE charge
15 GPS_PCS1_N PIO controlled
after Reset
Driven high
16 V_EXT_CHARGE charge
17 GPS_TIMEPULSE Input
18 GPS_VANT Input
19 NC
20 UART_SWITCH Input
21 GPS_EN Input
22 NC NC
23 SIM_CLK Output Low
24 GPIO2 Input
25 SIM_RST Output Low
26 ONKEY Input
27 SIM_DATA Output Low
28 SDA SPI_IO Input If used pull-up an external
resistor to VCC
29 SIM_VCC Output
30 SCL SPI_CLK Input If used pull-up an external