ST ISQ002V1 User Manual
Features
STEVAL-ISQ002V1
RS232 to PMBus bridge demonstration board
based on the ST72264G1
Data brief
■ Based on the ST72264G1 microcontroller with
multi-master I
■ The microcontroller acts as PMBus master
2
C interface
which communicates with any compatible
PMBus slave using a 4-pin interface
■ RoHS compliant
Description
This STEVAL-ISQ002V1 implements a PMBus™
(power management bus), an open standard
protocol that defines a means of communicating
with power conversion and other devices. The
PMBus protocol has helped establish the first truly
open communications standard for digital control
of power systems. Implemented over the industrystandard SMBus (system management bus)
serial interface, the PMBus protocol facilitates the
programming, control and real-time monitoring of
compliant power conversion products.
The demonstration is based on the ST72F264G1
microcontroller and communicates with the PC
via Microsoft
employs a multi-master I
communication. The firmware of the application
performs the PMBus bus protocols described in
the PMBus power system management protocol
specification V 1.0.
®
HyperTerminal. The microcontroller
2
C peripheral for PMBus
STEVAL-ISQ002V1
The purpose of the STEVAL-ISQ002V1 is to
demonstrate the capabilities of the PMBus feature
using the ST7 I
2
C peripheral to support standard
PMBus commands.
February 2011 Doc ID 010012 Rev 1 1/4
For further information contact your local STMicroelectronics sales office.
www.st.com
4
Circuit schematic STEVAL-ISQ002V1
1 Circuit schematic
Figure 1. STEVAL-ISQ002V1 schematic diagram
2/4 Doc ID 010012 Rev 1
!-6
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