Rev. 0.3
7
3.5. Status Signals
There are four LEDs on the Si5xxPROG-EVB that report visual status as listed in Table 3 and shown in Figure 1b.
Upon powerup, D1 should be illuminated.
3.6. Jumpers
There are seven jumper locations on the Si5xx-PROG-EVB as listed in Table 4. The default or pre-loaded jumpers
are shown in Figure 1a.
Table 3. Si5xx-PROG-EVB LEDs
LED
ON
OFF
D1
VDD3p3 volts is present
VDD3p3 volts is NOT present
D2
Ext3p3V volts is present
Ext3p3V volts is NOT present
D3
Reserved
Reserved
D4
USB access in progress
No USB access in progress
Table 4. Si5xx-PROG-EVB Jumpers
Jumper Block Reference
Function
J5
Manual (on-board) VDD_DUT adjust (see
Table 1)
J11
VDD_DUT select:
1-2: External voltage (from J1)
2-3: On-board regulator
J13
I
2
C/Vc selector:
1-2: I
2
C communication
3-4: Ext Vc input (Si57x)
J16
Output enable (Si57x):
1-2: OE is HIGH
3-4: OE is LOW
J17
Manual shutdown of I
2
C port for Si514 (also
controllable via SW)
J19
Manual shutdown of I
2
C port for Si57x (also
controllable via SW)
J20
I
2
C communication access port
3-4: SCL connection to MCU
5-6: SDA connection to MCU
