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SMB Configuration Options
95
SLUUBD3D–September 2015–Revised September 2018
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Communications
Class Subclass Name Format
Size in
Bytes
Min Max Default Unit
Settings
SMB Master
Mode
Charger Request
Timer
Integer 1 0 255 50 s
16.6 SMB Configuration Options
This register configures various SMBus related features.
Class Subclass Name Format Size in Bytes Min Max Default Unit
Settings Configuration
Smb
Configuration
hex 1 0x00 0xB7 0xA0 —
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Low Byte FIXED_ADDR RSVD BLT1 BLT0 RSVD HPE CPE BCAST
FIXED_ADDR (Bit 7): This bit enables the bq78350-R1 to determine its slave address via measurement
of the SMBA pin or to use a fixed address of 0x16.
0 = The SMBus slave address is selected via SMBA.
1 = The SMBus address is 0x16. (default)
RSVD (Bit 6): Reserved
BLT1:0 (Bits 5–4): Bus low timeout
0,0 = No SBS bus low timeout
0,1 = 1-s SBS bus low timeout
1,0 = 2-s SBS bus low timeout (default)
1,1 = 3-s SBS bus low timeout
RSVD (Bit 3): Reserved
HPE (Bit 2): PEC on host communication
0 = Disabled (default)
1 = Enabled
CPE (Bit 1): PEC on charger communication
0 = Disabled (default)
1 = Enabled
BCAST (Bit 0): Enable alert and charging broadcast from device to host
0 = Disabled (default)
1 = Enabled
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