BQ2063_15 Datasheet, PDF (38/60 Pages) Texas Instruments – SBS v1.1-COMPLIANT Li-ION GAS-GAUGE IC

bq2063
Not Recommended For New Designs
SBS v1.1ĆCOMPLIANT LiĆION GASĆGAUGE IC
WITH PROTECTOR INTERFACE
SLUS468E− MAY 2001 − REVISED APRIL 2002
command codes (continued)
SpecificationInfo( ) (0x1a); [0x1a]
Description: Returns the version number of the Smart Battery specification the battery pack supports, as well
as voltage and current scaling information in a packed unsigned integer. Power scaling is the product of the
voltage scaling times the current scaling. The SpecificationInfo is packed in the following fashion: (SpecID_H
* 0x10 + SpecID_L) + (VScale + IPScale * 0x10) * 0x100.
The bq2063 VScale (voltage scaling) and IPScale (current scaling) should always be set to zero. The bq2063
sets SpecificationInfo( ) to the value programmed in Specification Information EE 0x14-0x15.
Purpose: The SpecificationInfo( ) function is used by the SMBus Host’s power management system to
determine what information the Smart Battery can provide.
SMBus Protocol: Read Word
Output: Unsigned integer-packed specification number and scaling information:
FIELD
SpecID_L
SpecID_H
VScale
IPScale
BITS USED
0...3
4...7
8...11
12...15
FORMAT
4-bit binary value
4-bit binary value
4-bit binary value
4-bit binary value
ALLOWABLE VALUES
0–15
0–15
0 (multiplies voltage by 10^ VScale)
0 (multiplies current by 10 ^ IPScale)
ManufactureDate( ) (0x1b); [0x1b]
Description: This function returns the date the cell pack was manufactured in a packed integer. The date is
packed in the following fashion: (year-1980) _∗ 512 + month _∗ 32 + day. The bq2063 sets ManufactureDate( )
to the value programmed in Manufacture Date EE 0x16-0x17.
Purpose: The ManufactureDate( ) provides the system with information that can be used to uniquely identify
a particular battery pack when used in conjunction with SerialNumber( ).
SMBus Protocol: Read Word
Output: Unsigned integer-packed date of manufacture:
FIELD
Day
Month
Year
BITS USED
0...4
5...8
9...15
FORMAT
5-bit binary value
4-bit binary value
7-bit binary value
ALLOWABLE VALUES
0–31 (corresponds to date)
1–12 (corresponds to month number)
0−127 (corresponds to year biased by 1980)
SerialNumber( ) (0x1c); [0x1c]
Description: This function is used to return a serial number. This number, when combined with the
ManufacturerName( ), the DeviceName( ), and the ManufactureDate( ), uniquely identifies the battery
(unsigned integer). The bq2063 sets SerialNumber( ) to the value programmed in Serial Number EE
0x18−0x19.
Purpose: The SerialNumber( ) function can be used to identify a particular battery. This may be important in
systems that are powered by multiple batteries where the system can log information about each battery that
it encounters.
SMBus Protocol: Read Word
Output: Unsigned integer
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