4 system connector multiplexing – Rainbow Electronics MG260 User Manual
Page 29
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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