DE3 User Manual
15
into four I/O groups, named A, B, C and D.
Table 2-2
shows the relation between I/O groups and
connectors.
Table 2-2 The relation between I/O groups and connectors
I/O Group
Connectors
A
HSTC connector A, GPIO expansion headers
(1)
B
HSTC connector B, DDR2 SO-DIMM socket
(2)
C
HSTC connector C
D
HSTC connector D
Note:
(1)
: HSTC connector A and GPIO expansion headers share the same I/O pins.
(2)
: HSTC connector B and DDR2 SO-DIMM socket share the same I/O pins.
Besides, the V
CCIO
level for these I/O groups of the FPGA can be configured, and many I/O
standards are supported. The I/O standard of each I/O group on DE3 board has to be set through a
software utility named “DE3 System Builder”. Such tool is intended to generate a top level
Quartus II project, which includes the power controller IP.
After the FPGA is programmed, the power controller IP will control the V
CCIO
control circuit to
provide desired V
CCIO
and V
CCPD
level to the FPGA, according to I/O standard selected by users as
indicated in
Figure 2.10
.
With this feature, users can not only confirm if the V
CCIO
level meets the
design requirement, but also reduce the chance of the DE3 board and its daughter cards being
damaged.
Please refer to
Stratix III handbook chapter 7. Stratix III Device I/O Features
for more information
about the I/O standard and voltage levels of the Stratix III device.
There will be more instructions
for DE3 System Builder in Chapter 4.
V
CCIO
Selection
Power Control
IP
V
CCIO
to I/O bank
V
CCIO
Voltage-Level
Control Circuit
Figure 2.10. The architecture of Power Control IP and V
CCIO
control circuit
Содержание Altera DE3
Страница 1: ...Altera DE3 Board ...
Страница 67: ...DE3 User Manual 64 Figure 5 5 Plug USB Devices into DE3 Figure 5 6 Display Device Information ...
Страница 75: ...DE3 User Manual 72 Figure 5 14 Display SD Card Information for the SD Card Demonstration ...
Страница 79: ...DE3 User Manual 76 Figure 5 19 Parameter Settings in DDR2 Controller ...
Страница 106: ...DE3 User Manual 103 Figure C 1 Convert Programming Files Dialog Box Figure C 2 Highlight Flash Loader ...
Страница 112: ...DE3 User Manual 109 Figure D 1 The THDB_HLB adapter card Figure D 2 The connection setup for THDB HLB and DE3 board ...
Страница 113: ...DE3 User Manual 110 Figure D 3 The DE3_HSTC utility Figure D 4 The test result of the HSTC connector A ...
Страница 114: ...DE3 User Manual 111 Figure D 5 The reported message of the invalid I O pins ...