PAC1921 datasheet(31/56 Pages) MICROCHIP

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Software Description

 2015 Microchip Technology Inc.

DS50002376A-page 31

4.2.1.5.1

Numbering Systems Views

The “Reg Content” section allows values to be displayed using different numbering

systems: Decimal, Hex, Octal, Binary or SI Notation.

To view a value using a different numbering system, click the indicator to the left of the

value in the cell, shown circled in Figure 4-6.

FIGURE 4-6:

Numbering System Indicators.

4.2.2

Main Configuration Panel

The Main Configuration section, shown in Figure 4-7, contains the PAC1921 configu-

ration controls in registers 00h, 01h and 02h. Refer to the data sheet for register bit

descriptions.

FIGURE 4-7:

Main Configuration Panel.

4.2.2.1

ENABLE AUTO INT_EN

The “Enable Auto INT_EN” control is a GUI control convenience. Under normal

operation, for most of the integration parameter settings, changes do not take effect

until the PAC1921 is placed in the Read state. When the “Enable Auto INT_EN” control

is activated (light green – shown as “Enabled” in Figure 4-8), it automatically places the

PAC1921 into the Read state and back to Integrate state whenever a Main Configura-

tion control is changed. It also updates the GUI calculations. When the

“Enable Auto INT_EN” control is disabled (dark green), the user must place the device

in the Read state before the “I_RES”, “V_RES”, “SAMPLES”, “VSENSE FILT_EN” and

“VBUS FILT_EN” changes take effect, and to update the GUI calculations.

It is recommended that the “Enable Auto INT_EN” control be activated when using

the GUI.

FIGURE 4-8:

Enable Auto INT_EN GUI Control.

PAC1921 Datasheet(PDF) 31 Page - Microchip Technology