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LM8335 GUI

5.2 Test Access Tab

The Test Access tab (refer to Figure 6) is partitioned into 2 sections:

1. LM8335 GPO Readback: this section is used to verify the LM8335 GPO outputs. Clicking the Read

GPO button will perform a walking one test of the LM8335 GPOs. The test starts with the value of 1

(GPO0) and advances to 80 (GPO7). The test will wrap from 80 back to 1 and can be repeated

indefinitely by continuing to click the Read GPO button.

2. GPO Toggle Test: this section will cause the LM8335 to toggle between the values 0x55 and 0xAA for

the number of times entered in the Loop Count box after the GPO Toggle Test checkbox is clicked.

Figure 6. Test Access Tab

SNVU189A–October 2012–Revised May 2013 AN-2298 LM8335 Evaluation Module (EVM)

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