Texas Instruments DRV814x-Q1EVM, User Manual, Page: 17 / 22

5.3.2 Driver Control Page (SPI Device Variant)
Figure 5-5. Driver Control Page
Starting from left to right in Figure 5-5 , we have:
• WAKE The wake widget controls the nSleep device which directly controls the nSleep pin. The user cannot
switch between modes when the device is asleep in SPI mode, and the default for the SPI variant is "awake."
• ENABLE DRIVER Directly controls the DRVOFF pin. When the bridge control is active, the user cannot
change between modes or observe the passive diagnostics.
• MODE Programs the S_MODE register and will alter the appearance of the BRIDGE CONTROL depending
on your selection. There is a difference in MODE options between the DRV824x and DRV814x device
families. The DRV814x devices only operate in one fixed mode where the user can only switch between high
side and low side load connections. The high side connection connects the load between VM and OUT while
the low side connection connects the load between OUT and GND as can be seen in
Figure 5-6
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SLVUC46A – MARCH 2021 – REVISED JULY 2021
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DRV824x_DRV814x-Q1EVM User’s Guide 17
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