Altera Stratix III Development Board Manuel d'utilisateur Page 40

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Vue de la page 39
2–32 Chapter 2: Board Components
General User Interfaces
Stratix III 3SL150 Development Board May 2013 Altera Corporation
Reference Manual
User 7-Segment Display
Board reference U28 is a four-digit, user-defined, 7-segment display that is labeled
User Display. Each segment’s LED driver input signals are multiplexed to each of the
four digits and a minus sign. Table 229 lists the 7-segment display pin-out.
1 The four-pin, 7-segment display uses fewer pins than 2-digit, 7-segment displays. See
Figure 2–9.
Table 230 lists the 7-segment display component reference and manufacturing
information.
Table 2–29. User-Defined 7-Segment Display Pin-Out
Board Reference Description
Schematic
Signal Name
I/O Standard
Stratix III
Device
Pin Name
U28 pin 12 User-defined display signal
SEVEN_SEG_A
2.5 V AE10
U28 pin 11 User-defined display signal
SEVEN_SEG_B
2.5 V AL5
U28 pin 3 User-defined display signal
SEVEN_SEG_C
2.5 V AC12
U28 pin 8 User-defined display signal
SEVEN_SEG_D
2.5 V AM5
U28 pin 9 User-defined display signal
SEVEN_SEG_E
2.5 V AF11
U28 pin 7 User-defined display signal
SEVEN_SEG_F
2.5 V AM6
U28 pin 5 User-defined display signal
SEVEN_SEG_G
2.5 V AP3
U28 pin 2 User-defined display signal
SEVEN_SEG_DP
2.5 V AK6
U28 pin 13 User-defined display signal
SEVEN_SEG_MINUS
2.5 V AH11
U28 pin 1 User-defined display select signal
SEVEN_SEG_SEL1
2.5 V AM4
U28 pin 10 User-defined display select signal
SEVEN_SEG_SEL2
2.5 V AE12
U28 pin 4 User-defined display select signal
SEVEN_SEG_SEL3
2.5 V AL4
U28 pin 6 User-defined display select signal
SEVEN_SEG_SEL4
2.5 V AH8
Figure 2–9. 7-Segment Display
an
14
ca
13
A
12
B
11
C
3
D
8
E
2
F
9
G
7
DP
5
1
10
4
8
DIGIT2
DIGIT1
U28
A
G
D
DP
F B
E C
QUAD_7SEG_M2212R1
DIGIT3
DIGIT4
Table 2–30. 7-Segment Display Component Reference and Manufacturing Information
Board Reference Description Manufacturer
Manufacturing
Part Number
Manufacturer
Website
U28 7-segment, green LED display Lumex, Inc. LDQ-M2212R1 www.lumex.com
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