DE4 User Manual
70
www.terasic.com
June 20, 2018
SSRAM_CE2
Synchronous Chip enable
-
-
SSRAM_CE2_n
Synchronous Chip enable
-
-
SSRAM_ZZ
Sleep
-
-
2
2
.
.
1
1
7
7
I
I
2
2
C
C
S
S
e
e
r
r
i
i
a
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l
E
E
E
E
P
P
R
R
O
O
M
M
A 24LC02B Microchip 2kbit Electrically Erasable PROM (EEPROM) is equipped on the DE4
which is configured through a 2-wire serial interface. The device is organized as one block of 256 x
8-bit memory. The detailed pin description between the Stratix IV GX FPGA and EEPROM is
shown below in
Table 2–31
.
Table 2–31 EEPROM Pin Assignments, Schematic Signal Names, and Functions
Schematic
Signal Name
Description
I/O Standard
Stratix IV GX Pin
Number
EEP_SCL
Serial Clock
2.5-V
PIN_G33
EEP_SDA
Serial Address/Data I/O
2.5-V
PIN_F33
2
2
.
.
1
1
8
8
T
T
e
e
m
m
p
p
e
e
r
r
a
a
t
t
u
u
r
r
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e
S
S
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n
n
s
s
o
o
r
r
The DE4 is quipped with a temperature sensor MAX1619, which provides temperature sensing and
over-temperature alert. These functions are accomplished by connecting the temperature sensor to
the internal temperature sensing diode of the Stratix IV GX device. The temperature status and
alarm threshold registers of the temperature sensor can be programmed by a two-wire SMBus,
which is connected to the Stratix IV GX FPGA. In addition, the 7-bit POR slave address for this
sensor is set to ‘0011000b’.
An optional 3-pin +12V fan located on J10 of the DE4 board is intended to reduce the temperature
of the FPGA. When the temperature of the FPGA device is over the threshold value set by the users,
the fan will turn on automatically. The pin assignments for the associated interface are listed in
Table 2–32
.
Table 2–32 Temperature Sensor Pin Assignments, Schematic Signal Names, and Functions
Schematic
Signal Name
Description
I/O Standard
Stratix IV GX Pin
Number
Summary of Contents for ALTERA DE4
Page 1: ...DE4 User Manual 1 www terasic com June 20 2018 ...
Page 54: ...DE4 User Manual 54 www terasic com June 20 2018 ...
Page 83: ...DE4 User Manual 83 www terasic com June 20 2018 Figure 3 8 Access DDR2 SO DIMM memory ...
Page 92: ...DE4 User Manual 92 www terasic com June 20 2018 Figure 3 17 Fan Control of the DE4 ...
Page 150: ...DE4 User Manual 150 www terasic com June 20 2018 Figure 5 35 SOPC builder ...