Microchip Technology SAM B11ZR Xplained Pro User manual

ATSAMB11ZR
SAM B11ZR Xplained Pro User Guide
Description
Microchip's SAM B11ZR Xplained Pro evaluation kit is a hardware platform used to evaluate the
ATSAMB11ZR-210CA module.
Supported by the Atmel Studio integrated development platform, the kit provides easy access to the
features of the ATSAMB11ZR and explains how to integrate the device in a custom design.
The Xplained Pro MCU series evaluation kits include an on-board Embedded Debugger, and no external
tools are necessary to program or debug the ATSAMB11ZR.
The Xplained Pro extension kits offer additional peripherals to extend the features of the board and ease
the development of custom designs.
© 2017 Microchip Technology Inc. User Guide DS70005334A-page 1

Table of Contents
Description.......................................................................................................................1
1. Introduction................................................................................................................3
1.1. Feature list....................................................................................................................................3
1.2. Kit Overview................................................................................................................................. 3
2. Xplained Pro Getting Started.....................................................................................5
2.1. Xplained Pro Quick Start.............................................................................................................. 5
2.2. Design Documentation and Relevant Links................................................................................. 5
3. Xplained Pro.............................................................................................................. 6
3.1. Xplained Pro.................................................................................................................................6
3.2. Embedded Debugger................................................................................................................... 6
3.3. Xplained Pro Analog Module........................................................................................................7
3.4. Hardware Identification System....................................................................................................8
3.5. Power Sources............................................................................................................................. 9
3.6. Xplained Pro Headers and Connectors......................................................................................10
4. Hardware User Guide..............................................................................................12
4.1. Connectors.................................................................................................................................12
4.2. Peripherals................................................................................................................................. 15
4.3. Embedded Debugger Implementation........................................................................................17
5. Hardware Revision History...................................................................................... 20
5.1. Identifying Product ID and Revision........................................................................................... 20
5.2. Hardware Revision..................................................................................................................... 20
6. Document Revision History..................................................................................... 21
The Microchip Web Site................................................................................................ 22
Customer Change Notification Service..........................................................................22
Customer Support......................................................................................................... 22
Product Identification System........................................................................................23
Microchip Devices Code Protection Feature................................................................. 23
Legal Notice...................................................................................................................24
Trademarks................................................................................................................... 24
Quality Management System Certified by DNV.............................................................25
Worldwide Sales and Service........................................................................................26
ATSAMB11ZR
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1. Introduction
1.1 Feature list
• ATSAMB11ZR-210CA module
• Bluetooth® host and Device mode
• One mechanical reset button
• One mechanical programmable button
• One user LED (yellow)
• Battery header (1x2 100mil header)
• 32.768 kHz crystal
• Two Xplained Pro extension headers
• Embedded Debugger
– Auto-ID for board identification in Atmel Studio
– One status LED (yellow)
– One power LED (green)
– Symbolic debug of complex data types including scope information
– Programming and debugging, including power measurements
– Data Gateway Interface (DGI): SPI, I2C, four GPIOs
– Virtual COM port (CDC)
• Embedded current measurement circuitry with support for data visualization
• USB-powered
• Supported with application examples in Atmel Software Framework
1.2 Kit Overview
The SAM B11ZR Xplained Pro evaluation kit is a hardware platform used to evaluate the
ATSAMB11ZR-210CA module.
The kit offers a set of features that enable the user to get started with the ATSAMB11ZR-210CA module
peripherals right away, and to understand how to integrate the device in their own design.
ATSAMB11ZR
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ATSAMB11ZR
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2. Xplained Pro Getting Started
2.1 Xplained Pro Quick Start
Steps to start exploring the Xplained Pro platform:
1. Download and install Atmel Studio.
2. Launch Atmel Studio.
3. Connect the Debug USB port on the evaluation kit to the computer using a USB cable (Standard-A
to Micro-B or Micro-AB).
When the Xplained Pro MCU kit is connected to the computer for the first time, the operating system
installs the driver software automatically. This driver supports 32-bit and 64-bit versions of Microsoft®
Windows® XP, Windows Vista®, Windows 7, Windows 8, Windows 10, and Windows Server 2012.
When the Xplained Pro MCU board is powered, the power LED (green) glows and the Atmel Studio
automatically detects the specific Xplained Pro MCU and extension board(s) that are connected. The
landing page of the kit in the Atmel Studio has an option to launch the Atmel Software Framework (ASF)
and the Atmel START example application codes for the kit. The SAM B device is programmed and
debugged by the on-board embedded debugger and therefore no external programmer or debugger tool
is required.
2.2 Design Documentation and Relevant Links
The following list contains links to the most relevant documents and software for the SAM B11ZR
Xplained Pro.
•Xplained products - Xplained evaluation kits are a series of easy-to-use evaluation kits for
microcontrollers and other products. For low pin count devices, the Xplained Nano series provides
a minimalistic solution with access to all I/O pins of the target microcontroller. Xplained Mini kits are
for medium pin count devices and adds Arduino Uno compatible header footprint and a prototyping
area. Xplained Pro kits are for medium to high pin count devices, and feature advanced debugging
and standardized extensions for peripheral functions. All these kits have on board programmers/
debuggers which creates a set of low-cost boards for evaluation and demonstration of features and
capabilities of different products.
•Atmel Studio - Atmel Studio presents Free Atmel IDE for development of C/C++ and assembler
code for microcontrollers and relevant documentation.
•Microchip sample store - Microchip sample store where you can order samples of devices.
•EDBG User Guide - User guide containing more information about the on-board Embedded
Debugger.
•IAR Embedded Workbench ® for ARM ® - This is a commercial C/C++ compiler that is available for
ARM . There is a 30-day evaluation version as well as a code size limited kick-start version
available from their website. The code size limit is 16KB for devices with M0, M0+, and M1 cores
and 32KB for devices with other cores.
•Atmel Data Visualizer - Atmel Data Visualizer is a program used for processing and visualizing
data. Data Visualizer can receive data from various sources such as the Embedded Debugger Data
Gateway Interface found on Xplained Pro boards and COM ports.
•SAM B11ZR Xplained Pro BluSDK - Software, firmware, applications, and tools packages.
ATSAMB11ZR
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3. Xplained Pro
3.1 Xplained Pro
Xplained Pro is an evaluation platform which contains a series of microcontroller boards (evaluation kits)
and extension boards. Atmel Studio is used to program and debug the microcontrollers on these boards.
Atmel Studio includes Advanced Software Framework (ASF) and Atmel START, which has drivers and
demo code, and Data Visualizer, which supports data streaming and advanced debugging. Xplained Pro
evaluation kits can be connected to a wide range of Xplained Pro extension boards through standardized
headers and connectors. Xplained Pro extension boards have identification (ID) chips to uniquely identify
which boards are connected to the Xplained Pro evaluation kits.
3.2 Embedded Debugger
The SAM B11ZR Xplained Pro contains an Embedded Debugger (EDBG) for on-board debugging. The
EDBG is a USB composite device with the following interfaces:
• Debugger
• Virtual COM Port
• Data Gateway Interface (DGI)
The EDBG can program and debug the ATSAMB11ZR with the help of Atmel Studio. The SWD interface
is connected between the EDBG and the ATSAMB11ZR on the SAM B11ZR Xplained Pro.
The Virtual COM Port is connected to a UART on the ATSAMB11ZR and provides an easy way to
communicate with the target application through terminal software. It offers variable baud rate, parity, and
stop bit settings. The settings on the ATSAMB11ZR must match the settings given in the terminal
software.
Info: The Virtual COM Port in the EDBG requires the terminal software to set the Data
Terminal Ready (DTR) signal to enable the UART pins connected to the ATSAMB11ZR. If the
DTR signal is not enabled, the UART pins on the EDBG are kept in tri-state (high-z) to render
the COM Port not usable. The DTR signal is automatically set by some terminal software, but it
may have to be manually enabled in your terminal.
The DGI consists of several physical interfaces for bidirectional communication with the host computer.
Communication over the interfaces is bidirectional. It can be used to send event values, and data from
the ATSAMB11ZR. Traffic over the interfaces can be timestamped by the EDBG for more accurate tracing
of events, but timestamping reduces the maximal data throughput. The Data Visualizer is used to send
and receive data through DGI.
The EDBG controls two LEDs on the SAM B11ZR Xplained Pro, a power LED and a status LED. The
following table provides details on how the LEDs are controlled in different operation modes.
ATSAMB11ZR
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Table 3-1. EDBG LED Control
Mode Power LED Status LED
Normal mode The power LED is ON when
power is applied to the board.
Activity indicator, the LED flashes
when any communication
happens to the EDBG.
Bootloader mode (idle) The power LED and the status LED blink simultaneously.
Bootloader mode (firmware
upgrade)
The power LED and the status LED blink in an alternating pattern.
For additional information on the EDBG, see the EDBG User Guide.
3.3 Xplained Pro Analog Module
3.3.1 Overview
The Xplained Pro Analog Module (XAM) extends the embedded debugger with high dynamic range
current measurement. This enables power profiling of the target system.
Figure 3-1. XAM Block Diagram
ADC0
ADC1
20x
voltage
reference
2.7V
Control MCU
GND
S&H
ADC
Calibration
circuitry
Calibration ON/OFF
AREF
GPIO
GPIO(s)
GPIO
100 mOhm
100 Ohm
EDBG
SPI
Clock sync
SWD
Sync GPIO
I2C
2x
16x
Current input
Current output
Range selection
Pre-amplifier
Active filter with
gain
Xplained Pro Analog Module (XAM)
20x
The XAM consists of:
• Calibration circuitry
• Voltage reference circuitry
• Analog front-end:
– Shunt resistors with a range selection switch
– Pre-amplifier
– Two active filters with gain
• Control MCU
ATSAMB11ZR
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– Analog-to-Digital Converter
– Signal processing
– Control/communication interface to the EDBG
The current measurement front-end is a high side shunt measurement with a pre-amplifier and a second
active filter stage with gain as shown in Figure 3-1. The wide dynamic range is achieved by four
measurement ranges, which are defined by two shunt resistors and the two parallel second stage active
filters with gain.
3.3.2 Sample Rate
The raw sampling rate of the XAM is up to 250 kHz and with the default averaging configuration (average
of 16 samples), the actual output of the XAM is 16.67 ksps.
Info: The XAM output sample rate is not an integer fraction of the raw sampling.
3.3.3 Measurement Ranges and Accuracy
The XAM has four measurement ranges. These are defined by two shunt resistors and two gain stages.
Table 3-2. XAM Measurement Ranges and Accuracy
Measurement
Range
Hardware Resolution Accuracy Comments
Range 1 Low current shunt and
high gain stage
20 nA 1 LSB ±1% Accuracy will decrease below
1 μA. Typical accuracy for
300 nA is 1 LSB ±10%.
Range 2 Low current shunt and
low gain stage
150 nA 1 LSB ±1%
Range 3 High current shunt and
high gain stage
10 μA 1 LSB ±1%
Range 4 High current shunt and
low gain stage
100 μA 1 LSB ±1% Accuracy will decrease above
100 mA. Typical accuracy is
1 LSB ±5% at 400 mA.
Maximum current is 400 mA.
The ranges are automatically switched by the XAM to achieve the best measurement results and the
currently active range is visualized in the Data Visualizer front-end tool. The maximum voltage drop over
the shunt resistor is 100 mV, and the XAM switches the range automatically before reaching this limit.
3.4 Hardware Identification System
All Xplained Pro extension boards come with an identification chip (ATSHA204A CryptoAuthentication™
chip) to uniquely identify the boards that are connected to the Xplained Pro evaluation kit. This chip
contains information that identifies the extension with its name and some extra data. When an Xplained
Pro extension is connected to an Xplained Pro evaluation kit, the information is read and sent to the
Atmel Studio. The following table shows the data fields stored in the ID chip with example content.
ATSAMB11ZR
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Table 3-3. Xplained Pro ID Chip Content
Data Field Data Type Example Content
Manufacturer ASCII string Microchip'\0'
Product name ASCII string Segment LCD1 Xplained Pro'\0'
Product revision ASCII string 02'\0'
Product serial number ASCII string 1774020200000010’\0’
Minimum voltage [mV] uint16_t 3000
Maximum voltage [mV] uint16_t 3600
Maximum current [mA] uint16_t 30
3.5 Power Sources
The SAM B11ZR Xplained Pro kit can be powered by several power sources as listed in the table below.
Table 3-4. Power Sources for SAM B11ZR Xplained Pro
Power input Voltage requirements Current requirements Connector marking
External power 5V ±2% (±100 mV) for
USB host operation.
4.3V to 5.5V if USB host
operation is not
required.
Recommended
minimum is 1A to be
able to provide enough
current for connected
USB devices and the
board itself.
Recommended
maximum is 2A due to
the input protection
maximum current
specification.
PWR
Embedded debugger
USB
4.4V to 5.25V (according
to USB spec.)
500 mA (according to
USB spec.)
DEBUG USB
Battery header is another power input, refer to Battery Header.
The kit will automatically detect which power sources are available and choose which one to use
according to the following priority:
1. External power.
2. Embedded Debugger USB.
Note: The selection for the supply of the Target MCU has a separate connector. The above priority
selects which supply is used to power the EDBG and the VCC_P3V3_CON.
Info: External power is required when 500mA from a USB connector is not enough to power
the board with possible extension boards. A connected USB device in a USB host application
might easily exceed this limit.
ATSAMB11ZR
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3.6 Xplained Pro Headers and Connectors
3.6.1 Xplained Pro Standard Extension Header
All Xplained Pro kits have many dual row, 20-pin, 100-mil extension headers. The Xplained Pro MCU
boards have male headers, while the Xplained Pro extensions have their female counterparts. All
connected pins follow the defined pin description in the table.
Info: Not all pins are always connected on all extension headers.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target microcontroller on the Xplained Pro boards.
Table 3-5. Xplained Pro Standard Extension Header
Pin Number Pin Name Description
1 ID Pin to communicate with the ID chip on an extension board.
2 GND Ground
3 ADC(+) Analog-to-Digital Converter; alternatively, a pin for the positive
terminal of a differential ADC.
4 ADC(-) Analog-to-Digital Converter; alternatively, a pin for the negative
terminal of a differential ADC.
5 GPIO1 General purpose I/O pin.
6 GPIO2 General purpose I/O pin.
7 PWM(+) Pulse width modulation; alternatively, a pin for the positive part of a
differential PWM.
8 PWM(-) Pulse width modulation; alternatively, a pin for the negative part of a
differential PWM.
9 IRQ/GPIO Interrupt request pin and/or general purpose I/O pin.
10 SPI_SS_B/
GPIO
Slave select pin for Serial Peripheral Interface (SPI) and/or general
purpose I/O pin.
11 I2C_SDA Data pin for I2C interface. Always connected, bus type.
12 I2C_SCL Clock pin for I2C interface. Always connected, bus type.
13 UART_RX Receiver pin of target device UART.
14 UART_TX Transmitter pin of target device UART.
15 SPI_SS_A Slave select for SPI. This pin should preferably not be connected to
anything else.
16 SPI_MOSI SPI master out slave in pin. Always connected, bus type.
17 SPI_MISO SPI master in slave out pin. Always connected, bus type.
ATSAMB11ZR
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Pin Number Pin Name Description
18 SPI_SCK SPI clock pin. Always connected, bus type.
19 GND Ground pin for extension boards.
20 VCC Power pin for extension boards.
3.6.2 Xplained Pro Power Header
The power header can be used to connect external power to the SAM B11ZR Xplained Pro kit. The kit
automatically detects and switches to any external power if supplied. The power header can also be used
to supply power to external peripherals or extension boards. Ensure that the total current does not
exceed the recommended current limit of the on-board regulator when using the 3.3V pin.
Table 3-6. Xplained Pro Power Header
Pin Number Pin Name Description
1 VEXT_P5V0 External 5V input pin
2 GND Ground pin
3 VCC_P5V0 Unregulated 5V pin (an output, derived from one of
the input sources)
4 VCC_P3V3 Regulated 3.3V pin (an output, used as main power
supply for the kit)
ATSAMB11ZR
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4. Hardware User Guide
4.1 Connectors
The following sections describe the implementation of the relevant connectors and headers on SAM
B11ZR Xplained Pro and their connection to the ATSAMB11ZR. The tables of connections in the sections
also describe which signals are shared between the headers and on-board functionality.
Figure 4-1. SAMB11ZR Xplained Pro Connector Overview
4.1.1 Xplained Pro Extension Headers
The SAM B11ZR Xplained Pro headers EXT1 and EXT3 offers access to the I/O of the microcontroller in
order to expand the board e.g., by connecting extensions to the board. These headers are based on the
standard extension header specified in Xplained Pro Standard Extension Header . The headers have a
pitch of 2.54mm
Table 4-1. Extension Header EXT1
EXT1 pin SAM B11ZR
pin
Function Shared functionality
1 [ID] - - Communication line to the ID
chip on an extension board
2 [GND] - - Ground
ATSAMB11ZR
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EXT1 pin SAM B11ZR
pin
Function Shared functionality
3 [ADC(+)] GPIO_MS1 ADC
4 [ADC(-)] GPIO_MS2 ADC
5 [GPIO1] LP_GPIO_5 GPIO/UART1_RTS EXT3
6 [GPIO2] LP_GPIO_4 GPIO/UART1_CTS EXT3
7 [PWM(+)] LP_GPIO_17 GPIO/SPI1_SCK EDBG GPIO,EXT3
8 [PWM(-)] LP_GPIO_18 GPIO/SPI1_MISO EDBG GPIO,EXT3
9 [IRQ/GPIO] AO_GPIO_0 IRQ/GPIO USER BUTTON
10 [SPI_SS_B/GPIO] AO_GPIO_2 GPIO Temperature Sensor, EXT3
11 [TWI_SDA] LP_GPIO_8* /
AO_GPIO_1
I²C SDA EDBG I²C, Temperature Sensor
12 [TWI_SCL] LP_GPIO_9 I²C SCL EDBG I²C, Temperature Sensor
13 [USART_RX] LP_GPIO_2 UART1 RXD EDBG UART
14 [USART_TX] LP_GPIO_3 UART1 TXD EDBG UART
15 [SPI_SS_A] LP_GPIO_12 SPI_SSN EDBG SPI
16 [SPI_MOSI] LP_GPIO_11 SPI MOSI EDBG SPI
17 [SPI_MISO] LP_GPIO_13 SPI MISO EDBG SPI
18 [SPI_SCK] LP_GPIO_10 SPI SCK EDBG SPI
19 [GND] - - Ground
20 [VCC] - - Power for extension board
Table 4-2. Extension Header EXT3
EXT3 pin SAM B11ZR
pin
Function Shared functionality
1 [ID] - - Communication line to the ID
chip on an extension board
2 [GND] - - Ground
3 [ADC(+)] GPIO_MS3 ADC
4 [ADC(-)] GPIO_MS4 ADC
5 [GPIO1] LP_GPIO_5 GPIO/UART1_RTS EXT1
6 [GPIO2] LP_GPIO_4 GPIO/UART1_CTS EXT1
7 [PWM(+)] - -
8 [PWM(-)] - -
9 [IRQ/GPIO] AO_GPIO_1 IRQ/GPIO
ATSAMB11ZR
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EXT3 pin SAM B11ZR
pin
Function Shared functionality
10 [SPI_SS_B/GPIO] AO_GPIO_2 GPIO Temperature Sensor,EXT1
11 [TWI_SDA] LP_GPIO_14*/
AO_GPIO_1
I²C SDA DEBUG I²C,Crypto
Authentication Device
12 [TWI_SCL] LP_GPIO_15 I²C SCL DEBUG I²C,Crypto
Authentication Device
13 [USART_RX] LP_GPIO_6/
LP_GPIO_2
UART2 RX/UART1 RX * EDBG UART
14 [USART_TX] LP_GPIO_7/
LP_GPIO_3
UART2 TX/ UART1 TX * EDBG UART
15 [SPI_SS_A] LP_GPIO_16 SPI1 SSN EDBG GPIO,USER LED
16 [SPI_MOSI] LP_GPIO_19 SPI1 MOSI EDBG GPIO
17 [SPI_MISO] LP_GPIO_18 SPI1 MISO EDBG GPIO, EXT1
18 [SPI_SCK] LP_GPIO_17 SPI1 SCK EDBG GPIO, EXT1
19 [GND] - - Ground
20 [VCC] - - Power for extension board
Note : * denotes that particular pin is by default connected.
4.1.2 Current Measurement Header
An angled 1x2, 100mil pin-header marked with MCU current measurement is located at the upper edge of
the SAM B11ZR Xplained Pro. All power to the ATSAMB11ZR is exclusively routed through this header
(excluding power to headers and peripherals). To measure the power consumption of the device, remove
the jumper and replace it with an ammeter.
Caution: Removing the jumper from the pin-header while the kit is powered may cause the
ATSAMB11ZR to be powered through its I/O pins. This may cause permanent damage to the
device.
4.1.3 Cortex Debug Connector
SAM B11ZR Xplained Pro has a 10-pin 50-mil Cortex® Debug Connector that can be used to attach
external debuggers to the ATSAMB11ZR.
Table 4-3. Cortex Debug Connector
Cortex Debug
Connector pin
Pin / Net Function Shared functionality
1 VCC_TARGET_P3V3 ATSAMB11ZR voltage
2 GPIO_1 SWD data signal EDBG SWD
3 GND Ground
4 GPIO_2 SWD clock signal EDBG SWD
ATSAMB11ZR
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Cortex Debug
Connector pin
Pin / Net Function Shared functionality
5 GND Ground
6 - -
7 - -
8 - -
9 GND Ground
10 CHIP EN Target reset signal Reset Button
Note: The Target reset (CHIP EN pin on the ATSAMB11ZR-210CA module) is isolated from the Cortex
Debug Connector by R300 (0 Ohm link) which is not mounted by default in the PCBA.
4.2 Peripherals
4.2.1 Crystals
The SAM B11ZR Xplained Pro kit contains one mounted 32.768kHz crystal that can be used as a clock
source for the SAM B11ZR. The crystal has cut-straps next to it that can be used to measure the
oscillator safety factor. This is done by cutting the strap and adding a resistor across the strap.
Information about oscillator allowance and safety factors can be found in application note AVR41001.
Table 4-4. External 32.768kHz Crystal
SAM B11ZR pin Function Shared functionality
RTC_CLKP XIN32 -
RTC_CLKN XOUT32 -
4.2.2 Mechanical Buttons
SAM B11ZR Xplained Pro contains two mechanical buttons:
• RESET button connected to the SAM B11ZR reset line
– When the RESET button is pressed it drives the I/O line to ground
• Generic user configurable button
– When the user button is pressed it drives the I/O line to target voltage
Note: There is no pull up resistor connected to the generic user button. Remember to enable the
internal pull up in the SAM B11ZR to use the button.
Table 4-5. Mechanical Buttons
SAM B11ZR pin Silkscreen text Shared functionality
CHIP EN RESET EDBG SWD
AO_GPIO_0 SW0 EXT1
4.2.3 LED
There is one yellow LED available on the SAM B11ZR Xplained Pro board that can be turned on and off.
The LED can be activated by driving the connected I/O line to GND.
ATSAMB11ZR
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Table 4-6. LED Connection
SAM B11ZR pin Function Shared functionality
LP_GPIO_16 Yellow LED0 EDBG GPIO, EXT3
4.2.4 Debug I2C and UART Headers
Debug I2C 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 I2C pin description:
Table 4-7. Debug I2C Pin description Specification
SAM B11ZR pin Function Shared functionality
I2C SCL Clock line for I2C EXT3, Crypto Authentication Device
GND Ground
I2C SDA Data line for I2C EXT3, Crypto Authentication Device
NC
The following table provides the Debug UART pin description:
Table 4-8. Debug UART Pin description Specification
SAM B11ZR pin Function Shared functionality
UART TXD UART TX pin
UART RXD UART RX pin
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 Function
1 Power from battery
2 VCC pin of SAM B11ZR board, powers both MCU and Extensions
3 Power from board supply
ATSAMB11ZR
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4.2.6 Temperature Sensor
The SAM B11ZR Xplained Pro has an on-board temperature sensor AT30TSE758A, powered by the
VCC_TARGET_P3V3 of the board. The temperature sensor is I²C controlled and is available on the
address 0x48 (7-bit MSB address).
AT30TSE758A also has a serial EEPROM accessible through I2C.
SAMB11 pin Function Shared functionality
LP_GPIO_8 SDA (Data line) EXT1, EDBG I²C
LP_GPIO_9 SCL (Clock line) EXT1, EDBG I²C
AO_GPIO_2 ALERT EXT1, EXT3
4.2.7 Crypto Authentication Device
The SAM B11ZR Xplained Pro has a Crypto Authentication Device (ATECC508A) connected to the I2C
bus. The table below shows all the connections between the ATECC508A and ATSAMB11ZR-210CA
module.
Table 4-10. ATECC508A Connections
SAMB11 ZR pin ATECC508A pin Function Shared Functionality
4 5 UART2_CTS/I2C1_SDA DEBUG I²C,EXT3
5 6 UART2_RTS/I2C1_SCL DEBUG I²C,EXT3
4.3 Embedded Debugger Implementation
SAM B11ZR Xplained Pro contains an Embedded Debugger (EDBG) that can be used to program and
debug the ATSAMB11ZR using Serial Wire Debug (SWD). The Embedded Debugger also includes a
Virtual Com port interface over UART, a Data Gateway Interface (DGI) over SPI, and I2C , and also
includes four of the SAM B11ZR GPIOs. The kit also includes a XAM extension processor to the
Embedded Debugger for on-board current measurement. Atmel Studio can be used as a front-end for the
Embedded Debugger.
4.3.1 Serial Wire Debug
The Serial Wire Debug (SWD) uses two pins to communicate with the target. For further information on
how to use the programming and debugging capabilities of the EDBG, see Embedded Debugger.
Table 4-11. SWD Connections
SAM B11ZR pin Function
LP_GPIO_0 SWD clock
LP_GPIO_1 SWD data
4.3.2 Virtual COM Port
The Embedded Debugger acts as a Virtual Com Port gateway by using one of the ATSAMB11ZR UARTs.
For further information on how to use the Virtual COM port, see Embedded Debugger.
ATSAMB11ZR
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Table 4-12. Virtual COM Port Connections
SAM B11ZR pin Function Shared functionality
LP_GPIO_2 RX line EXT1,EXT3
LP_GPIO_3 TX line EXT1,EXT3
4.3.3 Data Gateway Interface
The Embedded Debugger features an Data Gateway Interface (DGI) by using either an SPI or I²C. The
DGI can be used to send a variety of data from the ATSAMB11ZR to the host PC.
Table 4-13. DGI Interface Connections When Using SPI
SAM B11ZR pin Function Shared functionality
LP_GPIO_12 GPIO/SPI SS (Slave select) (SAM
B11ZR is Master)
EXT1
LP_GPIO_13 SPI MISO (Master In, Slave Out) EXT1
LP_GPIO_11 SERCOM5 PAD[2] SPI MOSI (Master
Out, Slave in)
EXT1
LP_GPIO_10 SERCOM5 PAD[3] SPI SCK (Clock Out) EXT1
Table 4-14. DGI Interface Connections When Using I²C
SAM B11ZR pin Function Shared functionality
LP_GPIO_8 SDA (Data line) EXT1, Temperature Sensor
LP_GPIO_9 SCL (Clock line) EXT1, Temperature Sensor
Four GPIO lines are connected to the Embedded Debugger. The EDBG can monitor these lines and time
stamp pin value changes. This makes it possible to accurately time stamp events in the SAM B11ZR
application code.
Table 4-15. GPIO Lines Connected to the EDBG
SAM B11ZR pin Function Shared functionality
LP_GPIO_16 GPIO0 EXT3, USER LED
LP_GPIO_17 GPIO1 EXT1, EXT3
LP_GPIO_18 GPIO2 EXT1, EXT3
LP_GPIO_19 GPIO3 EXT3
4.3.4 SAM B11ZR Xplained Pro XAM Configuration
On the SAM B11ZR Xplained Pro the MCU and the MCU peripherals (e.g. extensions) are powered by
their own regulator, as shown in the following figure. All other parts of the board, mainly the embedded
debugger and accompanying Xplained Pro Analog Module (XAM), are powered from a separate
regulator. The current to the MCU and peripherals can be measured by connecting them to the XAM
output through jumper settings.
ATSAMB11ZR
© 2017 Microchip Technology Inc. User Guide DS70005334A-page 18

Figure 4-2. SAMB11ZR XAM Implementation Block Diagram
On the SAM B11ZR Xplained Pro the XAM can be used in four configurations:
1. No current measurement or external MCU current measurement: The XAM is bypassed and
thus the MCU and peripherals are supplied directly by the regulator. Set both jumpers in the
"BYPASS" position. In this configuration it is also possible to connect external measurement tools
on the Xplained Pro MCU power measurement header to measure MCU current directly instead of
using the XAM.
2. MCU current measurement: The XAM measures only the MCU current while the peripherals are
supplied directly by the regulator. For this configuration, place the jumper for "I/O" (peripherals) into
the "BYPASS" position and the for "MCU" into the "MEASURE" position.
3. Peripherals measurement: The XAM measures only the peripherals current while the MCU is
directly supplied by the regulator. For this configuration, place the jumper for "MCU" into the
"BYPASS" position and the "I/O" jumper into the "MEASURE" position.
4. MCU and peripherals measurement: In this configuration both MCU and peripherals are
measured by the XAM. Place both jumpers on "I/O" and "MCU" headers in the "MEASURE"
position.
ATSAMB11ZR
© 2017 Microchip Technology Inc. User Guide DS70005334A-page 19

5. Hardware Revision History
5.1 Identifying Product ID and Revision
The revision and product identifier of the Xplained Pro boards can be found in two ways: either through
Atmel Studio or by looking at the sticker on the bottom side of the PCB.
When an Xplained Pro MCU board is connected to a computer with Atmel Studio running, an information
window with the serial number is shown. The first six digits of the serial number contain the product
identifier and revision. Information about connected Xplained Pro extension boards is also shown in the
window.
The same information can be found on the sticker on the bottom side of the PCB. Most kits have stickers
that have the identifier and revision printed in plain text as A09-nnnn\rr, where nnnn is the identifier and rr
is the revision. Boards with limited space have a sticker with only a data matrix code, which contains a
serial number string.
The serial number string has the following format:
"nnnnrrssssssssss"
n = product identifier
r = revision
s = serial number
The product identifier for the SAM B11ZR Xplained Pro is A09-2691.
5.2 Hardware Revision
Revision 4 is the initially released revision.
ATSAMB11ZR
© 2017 Microchip Technology Inc. User Guide DS70005334A-page 20