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BQ78412 Fiches technique(PDF) 17 Page - Texas Instruments

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No de pièce BQ78412
Description  Pb-Acid Battery State-of-Charge Indicator With Run-Time Display
Download  36 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

BQ78412 Fiches technique(HTML) 17 Page - Texas Instruments

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bq78412
www.ti.com
SLUSAA0 – OCTOBER 2010
Response from to host to bq78412.
Address
ACK
Checksum
Command Permissions
SealedLevel0
SealedLevel1
SealedLevel2
Enabled
Enabled
Enabled
Note: Data access is a function of sealed level. If access to a memory location is prohibited due to seal level then there is a NACK
response from the bq78412.
Single/Multiple Word Read
Host request to bq78412
Number of
Address
0x16
Address LSB
Address MSB
Words
0x00
Checksum
(1-16)
Note: The memory address is a byte address and must be an even number.
Response from bq78412 to host
Address
ACK
Data LSB 0
Data MSB 0
Data LSB n-1
Data MSB n-1
Checksum
Command Permissions
SealedLevel0
SealedLevel1
SealedLevel2
Enabled
Enabled
Enabled
Note: Data access is a function of sealed level. If access to a memory location is prohibited due to seal level then there is a NACK
response from the bq78412.
Read Device Type and Version
Host request to bq78412
Address
0x12
0x01
0x00
0x00
0x00
Checksum
Response from bq78412 to host
Address
ACK
'b'
'q'
'7'
'8'
'4'
'1'
'2'
Ver
Rev
Build
Checksum
Note: Firmware version, revision, and build are reported as hexadecimal numbers.
Command Permissions
SealedLevel0
SealedLevel1
SealedLevel2
Enabled
Enabled
Enabled
Set SealedLevel0
Host request to bq78412
Address
0x15
Byte3 (MSB)
Byte2
Byte1
Byte0 (LSB)
Checksum
Response from bq78412 to host
Address
ACK
Checksum
Command Permissions
SealedLevel0
SealedLevel1
SealedLevel2
NACK
Enabled
Enabled
Copyright © 2010, Texas Instruments Incorporated
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