BQ2085-V1P2 Datasheet, PDF (21/56 Pages) Texas Instruments – SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bq29311

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1
S
7
Battery Address
0001011
bq2085−V1P2
SLUS590 − DECEMBER 2003
11
8
1
8
ÓÓÓÓ ÓÓÓÓ ÓÓÓÓ ÓÓÓÓ _{0 A Command Code A Data Byte Low}
1
8
11
A Data Byte High A P
Write Word
1
7
S
Battery Address
0001011
11
8
ÓÓÓÓ ÓÓÓÓ ^{0 A Command Code}
11
7
A S Battery Address
11
ÓÓÓÓ ^{1 A}
8
1
8
ÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ Data Byte Low A Data Byte High
1
AP
Read Word
1
S
7
Battery Address
0001011
11
8
ÓÓÓÓÓÓ ÓÓÓÓÓÓ _{0 A Command Code}
11
AS
7
Battery Address
11^ÓÓÓA1^ÓÓÓ
8
1
ÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓÓ ÓÓÓÓÓÓÓÓÓÓÓÓ ^{ByteCount= N A}
8
1
Data Byte 1 A
8
1
Data Byte 2 A
8
Data Byte N
11
AP
Block Read
Host Processor
ÓÓÓÓÓÓ_bq2085
A − ACKNOWLEDGE
A − NOT ACKNOWLEDGE
S − START
P − STOP
Figure 6. SMBus Communication Protocol Without PEC
21