BQ2014H_15 Datasheet, PDF (12/28 Pages) Texas Instruments – Low-Cost NiCd/NiMH Gas Gauge IC

bq2014H
Table 8. bq2014H Command and Status Registers
Loc. Read/ Control Field
Symbol
Register Name
(hex) Write _{7(MSB) 6}
5
4
3
2
1 0(LSB)
FLGS1
Primary status flags
register
01h
R
CHGS BRP
0
CI VDQ 1 EDV1 EDVF
TMP Temperature register 02h R TMP3 TMP2 TMP1 TMP0 GG3 GG2 GG1 GG0
NACH
Nominal available capac-
ity high byte register
03h
R/W NACH7 NACH6 NACH5 NACH4 NACH3 NACH2 NACH1 NACH0
NACL
Nominal available
capacity low byte register
17h
R/W NACL7 NACL6 NACL5 NACL4 NACL3 NACL2 NACL1 NACL0
BATID
Battery identification
register
04h R/W BATID7 BATID6 BATID5 BATID4 BATID3 BATID2 BATID1 BATID0
LMD
Last measured
discharge register
05h R/W LMD7 LMD6 LMD5 LMD4 LMD3 LMD2 LMD1 LMD0
FLGS2
Secondary status flags
register
06h
R
RSVD DR2
DR1
DR0 ENINT VQ RSVD OVLD
PPD
Program pin pull-down
register
07h
R
RSVD RSVD RSVD PPD5 PPD4 PPD3 PPD2 PPD1
PPU
Program pin pull-up
register
08h R
RSVD RSVD RSVD PPU5 PPU4 PPU3 PPU2 PPU1
CPI
Capacity
inaccurate count register
09h
R/W
CPI7
CPI6
CPI5
CPI4 CPI3 CPI2 CPI1
CPI0
VSB
Battery voltage
register
0bh R 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
Temperature and dis-
CACT charge rate compensated 0dh R/W CACT7 CACT6 CACT5 CACT4 CACT3 CACT2 CACT1 CACT0
available capacity
Discharge rate com-
CACD pensated available
capacity
0eh R/W CACD7 CACD6 CACD5 CACD4 CACD3 CACD2 CACD1 CACD0
SAEH
Scaled available energy
high byte register
0fh
R SAEH7 SAEH6 SAEH5 SAEH4 SAEH3 SAEH2 SAEH1 SAEH0
SAEL
Scaled available energy
low byte register
10h
R
SAEL7 SAEL6 SAEL5 SAEL4 SAEL3 SAEL2 SAEL1 SAEL0
RCAC Relative CAC
11h R
- RCAC6 RCAC5 RCAC4 RCAC3 RCAC2 RCAC1 RCAC0
VSRH Current scale high
12h R VSRH7 VSRH6 VSRH5 VSRH4 VSRH3 VSRH2 VSRH1 VSRH0
VSRL Current scale low
13h R VSRL7 VSRL6 VSRL5 VSRL4 VSRL3 VSRL2 VSRL1 VSRL0
DCR Discharge register
18h R/W DCR7 DCR6 DCR5 DCR4 DCR3 DCR2 DCR1 DCR0
PPFC Program pin data
1eh R/W RSVD RSVD RSVD RSVD RSVD RSVD RSVD RSVD
INTSS V_OS Interrupt
38h R/W RSVD RSVD RSVD RSVD DCHGI RSVD RSVD CHGI
Notes:
RSVD = reserved.
All other registers not documented are reserved.
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