iPort Connects to Smart Battery

Want to connect an iPort to an SMBus Smart Battery? This diagram shows you how.

iPort to SMBus Smart Battery Diagram

Remember to use the switch on the side of iPort to turn its internal pull-ups off. These are too strong for the low power requirements of most batteries. The 15K pull-ups added to the cable are compatible with most SMBus Smart Batteries.

Reading SMBus Smart Battery data is a two step process.

Since the timing between these two steps is critical to avoid a battery time-out, use the iPort Master Tx/Rx command. This command lets the iPort handle both steps together without application intervention. The completed operation reports a Master Rx Complete Event to your application program, with the SMBus Smart Battery Data available in the Master Rx Receive Buffer.