P0071 Terasic Technologies Inc, P0071 Datasheet - Page 64

• Manufacturer Part Number: P0071
• Description: TPAD MULTIMEDIADEVELOPMENT KIT
• Manufacturer: Terasic Technologies Inc
• Series: tPAD, Cyclone®IVr

Specifications of P0071

• Main Purpose: Reference Design, Tablet
• Embedded: Yes, FPGA / CPLD
• Utilized Ic / Part: EP4CE115
• Primary Attributes: 8-Inch TFT LCD, LED Backlight
• Secondary Attributes: 5-Megapixel Digital Image Sensor
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4
 SRAM
The DE2-115 board has 2MB SRAM memory with 16-bit data width. Being featured with a
maximum performance frequency of about 125MHz under the condition of standard 3.3V single
power supply makes it suitable of dealing with high-speed media processing applications that need
ultra data throughput. The related schematic is shown in
 SDRAM
The board features 128MB of SDRAM, implemented using two 64MB SDRAM devices. Each
device consists of separate 16-bit data lines connected to the FPGA, and shared control and address
lines. These chips use the 3.3V LVCMOS signaling standard. Connections between FPGA and
SDRAM are shown in
Signal Name
IRDA_RXD
4
.
.
1
1
9
9
U
U
s
s
i
i
n
n
g
g
S
S
R
R
FPGA Pin No.
PIN_Y15
Figure
A
Figure 4-33 Connections between FPGA and SRAM
A
M
M
/
/
S
S
4-34.
D
D
Table 4-26 IR Pin Assignments
R
R
A
A
M
M
Description
IR Receiver
/
/
F
F
L
L
A
A
63
S
S
H
H
/
/
E
E
Figure
E
E
P
P
R
R
4-33.
O
O
M
M
I/O Standard
3.3V
/
/
S
S
D
D
C
C
a
a
r
r
d
d