0.5°C, 0.25°C, 0.125°C, 0.0625°C
•
User Programmable Temperature Limits:
1. Temperature Window Limit
2. Critical Temperature Limit
•
User Programmable Temperature Alert Output
•
Operating Voltage Range: 2.7V to 5.5V
•
Operating Current: 200 µA (typical)
•
Shutdown Current: 0.1 µA (typical)
•
2-wire Interface: I
2
C/SMBus Compatible
•
Available Packages: 2x3 DFN-8, MSOP-8
•
AEC-Q100 Qualified Grade 1
Figure 4-4. MCP9808
4.5
nEDBG
The AVR-IoT WG board contains an Embedded Debugger (nEDBG) for on-board programming and
debugging. The nEDBG is a composite USB device of several interfaces: a debugger, a mass storage
device, a data gateway and a Virtual COM port. Together with Atmel Studio, the nEDBG debugger
interface can program and debug the ATmega4808. The Virtual COM port is connected to a UART on the
ATmega4808 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 nEDBG controls one power and
status LED on the AVR-IoT WG board. The table below shows how the LED is controlled in different
operation modes.
The virtual COM port in the nEDBG requires the terminal software to set the Data Terminal Ready (DTR)
signal to enable the UART pins connected to the ATmega4808. If the DTR signal is not enabled, the
UART pins on the nEDBG are kept in high-Z (Tri-state) rendering the COM port unusable. The DTR
signal is automatically set by some terminal software, but it may have to be manually enabled in your
terminal.
Table 4-1. nEDBG LED CONTROL
Operation Mode
Status LED
Power-up
LED is lit - constant
Normal operation
LED is lit - constant
AVR-IoT WG User Guide
Appendix A: Hardware Components
©
2018 Microchip Technology Inc.
User Guide
DS50002809A-page 22
