Device
HDQ/1-Wire
HDQ
hdq_sio
Vdd
Texas
Instruments
BQ27000
gauge
hdq1wr-010
Start
Pads multiplexing
configuration
HDQ/1-Wire clock and power
management configuration
HDQ/1-Wire software reset
Interrupt enable
End
hdq1wr-011
Public Version
HDQ/1-Wire Use Cases and Tips
www.ti.com
18.6 HDQ/1-Wire Use Cases and Tips
18.6.1 How to Configure the HDQ/1-Wire when Connected with a BQ27000 Gauge
18.6.1.1 Environment
details the device connections with the BQ27000 gauge.
Figure 18-10. Environment
18.6.1.2 Programming Flow
This section details the programming flow of the HDQ/1-Wire.
shows the main steps of this
configuration. The BQ27000 gauge uses the HDQ mode.
Figure 18-11. HDQ/1-Wire Configuration in HDQ Mode
18.6.1.3 Pad Configuration and HDQ/1-Wire Clock and Power Management
shows the pad multiplexing and the clock and power management configuration to select for
the HDQ/1-Wire module.
Table 18-3. Registers Print for HDQ/1-Wire Configuration
Register Name
Address
Value
Value description
SCM.CONTROL_PA
0x 4800 21C4
0x0118 0100
Configure hdq_sio pad in
DCONF_I2C3_SDA
mode 0
2858HDQ/1-Wire
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated