1.1 Key Features

The most important features of the EV98D91A are highlighted in this section.

Figure 1-1. Key Feature Identification
  1. 2-Lead µVSFN Socket (U1)
  2. Pin 1 Indicator
  3. Interface Selection Jumper (J3)
  4. SWI-PWM Pull-up Resistor (R5)
  5. SWI Pull-Up Resistor (R2)
  6. mikroBUS™ Connector (J1, J2)
  7. Zero-ohm Resistor Jumpers to Select 3.3V or 5VPower (3.3V Enabled by Default via R3)
  8. On-Board LED Power Indicator (LD1)
  9. Parasitic Power Boost Circuitry (U2, R6)
Note: To enable 5V power, remove R3 and solder a zero-ohm resistor into R4.