Datasheet

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Register Interface
bq27010 , bq27210
SLUS707B – APRIL 2006 – REVISED JANUARY 2007
FUNCTIONAL DESCRIPTION (continued)
The bqJUNIOR stores all calculated information in RAM, which is backed up by the voltage on the RBI input.
EEPROM registers store permanent user data. The memory map for bq27010/bq27210 is shown in Table 1 .
Table 1. bq27010/bq27210 Memory Map
ADDRESS NAME FUNCTION UNITS ACCESS
EEPROM Registers
0x7F TCOMP Temperature Compensation Constants, OR, ID#1 R/W
0x7E DCOMP Discharge Rate Compensation Constants, OR, ID#2 R/W
0x7D GAF/DEDV Gain Age Factor / EDVI Rate Compensation R/W
0x7C PKCFG Pack Configuration Values R/W
0x7B TAPER LMD Aging Enable, Charge Termination Taper Current 228 µV
(1)
R/W
0x7A DMFSD Digital Magnitude Filter and Self-Discharge Rate Constants R/W
0x79 ISLC/EDVT Initial Standby Load Current / EDVI Temperature Compensation R/W
0x78 SEDV1 Scaled EDV1 Threshold R/W
0x77 SEDVF Scaled EDVF Threshold R/W
0x76 ILMD Initial Last Measured Discharge High Byte 914 µVh
(1)
R/W
0x6F - 0x75 - RESERVED R
0x6E EE_EN EEPROM Program Enable R/W
0x2D - 0x6D - RESERVED R
RAM Registers
0x2C CSOC Compensated State-of-Charge % R
0x2B - 0x2A CYCT Cycle Count Total High - Low Byte Cycles R
0x29 - 0x28 CYCL Cycle Count Since Learning Cycle High - Low Byte Cycles R
0x27 - 0x26 TTECP Time-to-Empty At Constant Power High - Low Byte Minutes R
0x25 - 0x22 RSVD Reserved R
0x21 - 0x20 CEDV Compensated EDV Threshold High - Low Byte mV R
0x1F - 0x1E RSVD Reserved R
0x1D - 0x1C STTE Standby Time-to-Empty High - Low Byte Minutes R
0x1B - 0x1A SI Standby Current High - Low Byte 3.57 µV
(1)
R
0x19 - 0x18 TTF Time-to-Full High - Low Byte Minutes R
0x17 - 0x16 TTE Time-to-Empty High - Low Byte Minutes R
0x15 - 0x14 AI Average Current High - Low Byte 3.57 µV
(1)
R
0x13 - 0x12 FCAC Full Compensated Available Capacity High - Low Byte 3.57 µVh
(1)
R
0x11 - 0x10 CAC Compensated Available Capacity High - Low Byte 3.57 µVh
(1)
R
0x0F - 0x0E LMD Last Measured Discharge High - Low Byte 3.57 µVh
(1)
R
0x0D - 0x0C NAC Nominal Available Capacity High - Low Byte 3.57 µVh
(1)
R
0x0B RSOC Relative State-of-Charge % R
0x0A FLAGS Status Flags R
0x09 - 0x08 VOLT Reported Voltage High - Low Byte mV R
0x07 - 0x06 TEMP Reported Temperature High - Low Byte 0.25 ° K R
0x05 - 0x04 ARTTE At-Rate Time-to-Empty High - Low Byte Minutes R
0x03 - 0x02 AR At-Rate High - Low Byte 3.57 µV
(1)
R/W
0x01 MODE Device Mode Register R/W
0x00 CTRL Device Control Register R/W
(1) Divide by Rs in milliohms to convert µV to mA or µVh to mAh.
12
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