SMB Configuration Options
95
SLUUBD3D – September 2015 – Revised September 2018
Copyright © 2015–2018, Texas Instruments Incorporated
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