DE3 User Manual
16
Finally, there are LEDs located at the left-top corner of the DE3 board to indicate the V
CCIO
voltage
level of each I/O group, as shown in
Figure 2.11
. For example, the LED VA1 and VA2 will be
turned on and off, respectively, when the V
CCIO
of I/O Group A is set to 2.5V. Please refer to
Table
2-3
for the status of the LED indicator
.
For I/O
Group A
For I/O
Group D
For I/O
Group C
For I/O
Group B
Power
ON/OFF
Indicator
Figure 2.11. The Voltage-Level Indicator for the I/O Groups
Table 2-3 The LEDs indicates the V
CCIO
voltage level of each IO Group.
LED
V
CCIO
Vx1
(1)
Vx0
(1)
OK
3.3V
Light ON
Light ON
Light ON
2.5V
Light ON
Light OFF
Light ON
1.8V
Light OFF
Light ON
Light ON
1.5V
Light OFF
Light OFF
Light ON
0V
Light OFF
Light OFF
Light OFF
Note:
(1):
Vx1 can be VA1, VB2, VC3, and VD1; Vx0 can be VA0, VB0, VC0, and VD0
Summary of Contents for Altera DE3
Page 1: ...Altera DE3 Board ...
Page 67: ...DE3 User Manual 64 Figure 5 5 Plug USB Devices into DE3 Figure 5 6 Display Device Information ...
Page 75: ...DE3 User Manual 72 Figure 5 14 Display SD Card Information for the SD Card Demonstration ...
Page 79: ...DE3 User Manual 76 Figure 5 19 Parameter Settings in DDR2 Controller ...
Page 114: ...DE3 User Manual 111 Figure D 5 The reported message of the invalid I O pins ...