BQ2052_15 Datasheet, PDF (7/20 Pages) Texas Instruments – Gas Gauge IC

Not Recommended For New Designs
Preliminary bq2052
Table 6. bq2052 Command and Status Registers
Loc. Read/ Control Field
Symbol Register Name (hex) Write
7
6
5
4
3
2
1
0
CMDWD Command word
00h W CMD7 CMD6 CMD5 CMD4 CMD3 CMD2 CMD1 CMD0
FLGS1 Primary status flags 01h R INIT RSVD RSVD CPIN RSVD RSVD EDV1 EDVF
TEMP Temperature (°C)
02h R TEMP7 TEMP6 TEMP5 TEMP4 TEMP3 TEMP2 TEMP1 TEMP0
NAC
Nominal available
capacity
03h R/W NAC7 NAC6 NAC5 NAC4 NAC3 NAC2 NAC1 NAC0
BATID Battery identification 04h R/W BATID7 BATID6 BATID5 BATID4 BATID3 BATID2 BATID1 BATID0
VSRL Current scale (Low) 05h R VSRL7 VSRL6 VSRL5 VSRL4 VSRL3 VSRL2 VSRL1 VSRL0
VSRH Current scale (High) 06h R VSRH7 VSRH6 VSRH5 VSRH4 VSRH3 VSRH2 VSRH1 VSRH0
PPD
Program pin pull-
down
07h R RSVD RSVD PPD6 PPD5 PPD4 PPD3 PPD2 PPD1
PPU
Program pin pull-up 08h R RSVD RSVD PPU6 PPU5 PPU4 PPU3 PPU2 PPU1
VSB
Battery voltage
register
0bh R VSB7 VSB6 VSB5 VSB4 VSB3 VSB2 VSB1 VSB0
VTS
End-of-discharge
threshold select
register
0ch R/W VTS7 VTS6 VTS5 VTS4 VTS3 VTS2 VTS1 VTS0
RCAC
Relative compensated
capacity
0dh
R
RSVD RCAC6 RCAC5 RCAC4 RCAC3 RCAC2 RCAC1 RCAC0
CACL
Compensated avail-
able capacity low byte
0eh
R
CACL7 CACL6 CACL5 CACL4 CACL3 CACL2 CACL1 CACL0
CACH
Compensated available
capacity high byte
0fh
R
CACH7 CACH6 CACH5 CACH4 CACH3 CACH2 CACH1 CACH0
PFC
Program pin full count 10h R PFC7 PFC6 PFC5 PFC4 PFC3 PFC2 PFC1 PFC0
FNAC
Full nominal
available capacity
11h R/W FNAC7 FNAC6 FNAC5 FNAC4 FNAC3 FNAC2 FNAC1 FNAC0
MAX
RATE
Maximum discharge
rate
12h
R
MAX7 MAX6 MAX5 MAX4 MAX3 MAX2 MAX1 MAX0
RATE Discharge rate
13h R RATE7 RATE6 RATE5 RATE4 RATE3 RATE2 RATE1 RATE0
DCRL
Discharge count
register (low byte)
2eh R/W DCRL7 DCRL6 DCRL5 DCRL4 DCRL3 DCRL2 DCRL1 DCRL0
DCRH
Notes:
Discharge count
register (high byte)
2fh R/W DCRH7 DCRH6 DCRH5 DCRH4 DCRH3 DCRH2 DCRH1 DCRH0
RSVD = reserved.
All other registers not documented are reserved.
7