Pin Assignment; Table 6. Pin Assignment - ST SPLML-868 Preliminary Data Sheet

2.6

Pin assignment

Table 6.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1. For more details see the STM32L151RB datasheet, Pin descriptions section. Alternate functions of any
given pin are dependent on the user application firmware that is loaded into the module and is beyond the
scope of the document.
2. Refer to Hardware design section for details of protocol mode selection.
Pin assignment
Name Type
TXRXLED O
WKUP I/O
GPIO0 I/O
GPIO1 I/O
MODE0 I/O
MODE1 I/O
VDD Power
GND Power
SWDIO I/O
SWCLK I
BOOTMODE I
RESET I
TXD O
RXD I
RTS O
CTS I
Description
Active low Tx/Rx LED drive
Wake up module from shutdown
General purpose input/output 0
General purpose input/output 1
Protocol mode selection 0
Protocol mode selection 1
Supply input voltage
Ground
Serial wire I/O
Serial wire clock
Boot mode selection
Reset input, active low
UART transmit data
UART receive data
UART request to send
UART clear to send
Doc ID TBD Rev 0.8
STM32L pin
PA2
PA0
PB15
PB14
(2)
PB13
(2)
PB12
PA13
PA14
BOOT0
NRST
PA9
PA10
PB6
PB7
(1)
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