Atmel AVR943: ATAVRBM300 User Guide
Features
•
USB to serial interface converter
-
USB1.1 device
•
Converts USB to
-
SMBus/TWI
-
SPI
-
UART
-
Single-wire UART
•
USB supply power for Atmel
®
BM300
•
USB gateway to PC/Atmel AVR
®
Battery Studio 2
•
LED status indication
•
Supports the Atmel ATBMxxx-EK evaluation kits
1 Introduction
The Atmel ATAVRBM300 is a USB based communication tool that can be used to
communicate with Smart Battery systems by a PC. It supports four popular
interfaces used in Smart Battery system: SMBus/TWI, single-wire UART, UART,
and SPI. USB1.1 is used for connection with a PC. The product works as the USB
device while the PC is the USB host. The communication protocol is compliant with
SBS data specification v1.1, and some extended commands are added according
to the application requirement. PC software (Battery Studio 2) is required to
interpret the Smart Battery data.
Figure 1-1.
ATAVRBM300.
8-bit Atmel
Microcontrollers
Application Note
Rev. 8463A-AVR-11/11
