User's Manual

6/16 DocID026680 Rev 1
Hardware description UM1799
Table 2: Interconnection between STM32 Nucleo board and X-NUCLEO- NFC03A1 right-side
connectors
Signal
Name
D15
D14
AREF
GND
D13 D12 D11 D10
D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Right connector
Connector
Name
CN5 Digital CN9 Digital
Pin#
10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
NUCLEO-L053R8
(MCU Port)
PB8
PB9
PA5 PA6 PA7 PB6
PC7
PA9 PA8
PB10
PB4 PB5 PB3
PA10
PA2 PA3
X-NUCLEO-NFC03A1
expansion board
GND
SPI_CLK
SPI_MISO SPI_MOSI
SPI_CS_NFC
Interface_Pin
UART_TX/IRQ_IN
MCU_LED1
MCU_LED2
MCU_LED2 MCU_LED2
UART_RX/IRQ_OUT
2.2 Host interface and GPIO connection
The X-NUCLEO-NFC03A1 board contains the CR95HF-VMD5T chip and is powered by
STM32 Nucleo Board. Chip is driven by the microcontroller either via the SPI link or the
UART link, selection is ensured by microcontroller at CR95HF reset.
Four LEDS connected to microcontroller GPIOs are general purpose.