Atmel 8-bit AVR Microcontrollers AVR430: MC300 User Manual page 4

2.3 Jumpers
AVR430
4
Figure 2-2. Device board connector mechanical specification and schematics.
Refer to component floorplan for location of jumpers.
Table 2-1. Jumpers and their functions.
Designator Use and settings
Selects voltage source to Hall sensors (VHa)
J1 open
J1 pin 2 & 3 connected
J1 (VHa) J1 pin 1 & 2 connected
Selects voltage from onboard regulated supply (Vcc).
J2 connected
J2 (VCC) J2 open
– VHa not connected
– VHa = Vcc
– VHa = 5V (from separate regulator)
– Vcc = 3.3V
– Vcc = 5V
8124C-AVR-10/08