BQ2050_15 Datasheet, PDF (11/27 Pages) Texas Instruments – Lithium Ion Power Gauge™ IC

Not Recommended For New Designs
bq2050
Table 7. bq2050 Command and Status Registers
Loc. Read/ Control Field
Symbol ^{Register Name} (hex) Write _7(MSB)
6
5
4
3
2
1 0(LSB)
CMDR Command register 00h Write W/R AD6 AD5 AD4 AD3 AD2 AD1 AD0
FLGS1
Primary status flags
register
01h Read CHGS
BRP
n/u
CI VDQ n/u EDV1 EDVF
TMP Temperature register 02h Read TMP3 TMP2 TMP1 TMP0 GG3 GG2 GG1 GG0
Nominal available ca-
NACH pacity high byte reg- 03h R/W NACH7 NACH6 NACH5 NACH4 NACH3 NACH2 NACH1 NACH0
ister
Nominal available
NACL capacity low byte
register
17h Read NACL7 NACL6 NACL5 NACL4 NACL3 NACL2 NACL1 NACL0
Battery
BATID identification
register
04h R/W BATID7 BATID6 BATID5 BATID4 BATID3 BATID2 BATID1 BATID0
LMD
Last measured dis-
charge register
05h R/W LMD7 LMD6 LMD5 LMD4 LMD3 LMD2 LMD1 LMD0
FLGS2
Secondary status
flags register
06h Read n/u
DR2 DR1 DR0 n/u
n/u
n/u OVLD
PPD
Program pin pull-
down register
07h Read n/u
n/u PPD6 PPD5 PPD4 PPD3 PPD2 PPD1
PPU
Program pin pull-up
register
08h Read
n/u
n/u PPU6 PPU5 PPU4 PPU3 PPU2 PPU1
Capacity
CPI inaccurate count reg- 09h Read CPI7 CPI6 CPI5 CPI4 CPI3 CPI2 CPI1 CPI0
ister
VSB
Battery voltage
register
0Bh Read VSB7 VSB6 VSB5 VSB4 VSB3 VSB2 VSB1 VSB0
VTS
End-of-discharge thresh-
old select register
0Ch
R/W
VTS7
VTS6
VTS5 VTS4 VTS3 VTS2 VTS1 VTS0
Compensated avail-
CACH able capacity high byte 0Dh Read CACH7 CACH6 CACH5 CACH4 CACH3 CACH2 CACH1 CACH0
register
Compensated
CACL available capacity low 0Eh Read CACL7 CACL6 CACL5 CACL4 CACL3 CACL2 CACL1 CACL0
byte register
Scaled available
SAEH energy high byte reg- 0Fh Read SAEH7 SAEH6 SAEH5 SAEH4 SAEH3 SAEH2 SAEH1 SAEH0
ister
SAEL
Scaled available
energy low byte regis- 10h Read SAEL7 SAEL6 SAEL5 SAEL4 SAEL3 SAEL2 SAEL1 SAEL0
ter
RST Reset register
39h Write RST
0
0
0
0
0
0
0
Note:
n/u = not used
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