Chemistry-Independent

Battery Chargers

8

_______________________________________________________________________________________

SCL

START

CONDITION

SDA

MOST SIGNIFICANT

ADDRESS BIT (A6)

CLOCKED INTO SLAVE

A5 CLOCKED

INTO SLAVE

A4 CLOCKED

INTO SLAVE

A3 CLOCKED

INTO SLAVE

Figure 1. SMBus Serial Interface Timing—Address

SCL

RW BIT

CLOCKED

INTO SLAVE

SDA

ACKNOWLEDGE

BIT CLOCKED

INTO MASTER

SLAVE PULLING

SDA LOW

MOST SIGNIFICANT BIT

OF DATA CLOCKED

INTO MASTER

Figure 2. SMBus Serial Interface Timing—Acknowledge