Microchip Technology SAM B11ZR Xplained Pro User Manual page 16

Table 4-6. LED Connection
SAM B11ZR pin
LP_GPIO_16
2
4.2.4 Debug I C and UART Headers
2
Debug I C and UART headers are used for debugging the BLE stack in the SAM B11 boards. Both these
headers are not mounted on the production variant.
The following table provides the Debug I
Table 4-7. Debug I
SAM B11ZR pin
2
I C SCL
GND
2
I C SDA
NC
The following table provides the Debug UART pin description:
Table 4-8. Debug UART Pin description Specification
SAM B11ZR pin
UART TXD
UART RXD
GND
Note: Debug information is not supported in the BluSDK Smart. This section will be updated once
support for this is available
4.2.5 Battery Header
The SAM B11ZR Xplained Pro has a BATTERY HEADER for connecting the battery to power the
ATSAMB11ZR-210CA module. The battery header has a VCC and GND pin and is reverse polarity
protected. The battery power supply can be given to the device by placing a jumper over pin 1-2 on the 3-
pin VBAT SELECT header.
By default the jumper is placed over pin 2-3 to select the board power supply. This configuration is
selected to avoid draining the battery and can be used during development.
Table 4-9. VBAT SELECT Header
VBAT SELECT pin
1
2
3
©
2017 Microchip Technology Inc.
Function
Yellow LED0
2
C pin description:
2
C Pin description Specification
Function
2
Clock line for I C
Ground
2
Data line for I C
Function
UART TX pin
UART RX pin
Function
Power from battery
VCC pin of SAM B11ZR board, powers both MCU and Extensions
Power from board supply
Shared functionality
EDBG GPIO, EXT3
Shared functionality
EXT3, Crypto Authentication Device
EXT3, Crypto Authentication Device
Shared functionality
User Guide
ATSAMB11ZR
DS70005334A-page 16