HAT UserManual

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Raspberry PI HAT Rev 1.0 Copyright © 5GHUB.US
Figure 3. miniPCIe Pin Assignment
2.10 Pin Description
Pin #
Pin Name
Pin Direction
Pin Functionality
1
NC
2
VCC_3V3
I
3.0V~3.6V, typically
3.3V DC supply
3
NC
4
GND
Mini card ground
5
NC
6
NC
Not connected
7
RESERVED
Reserved
8
USIM_VDD
O
Power supply for the
(U)SIM card
9
GND
10
USIM_DATA
I
Data signal of (U)SIM
card
11
UART_RX
I
UART receive data
12
USIM_CLK
O
Clock signal of (U)SIM
card
13
UART_TX
O
UART transmit data
14
USIM_RST
O
Reset signal of (U)SIM