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Signal Name
VGA_R[0]
VGA_R[1]
VGA_R[2]
VGA_R[3]
VGA_R[4]
VGA_R[5]
VGA_R[6]
VGA_R[7]
VGA_G[0]
VGA_G[1]
VGA_G[2]
VGA_G[3]
VGA_G[4]
VGA_G[5]
VGA_G[6]
VGA_G[7]
VGA_B[0]
VGA_B[1]
VGA_B[2]
VGA_B[3]
VGA_B[4]
VGA_B[5]
VGA_B[6]
VGA_B[7]
VGA_CLK
VGA_BLANK_N
VGA_HS
VGA_VS
VGA_SYNC_N
4
.
1
1
U
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n
g
4
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1
1
U
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g
The DE2-115 board provides high-quality 24-bit audio via the Wolfson WM8731 audio CODEC
(Encoder/Decoder). This chip supports microphone-in, line-in, and line-out ports, with a sample rate
adjustable from 8 kHz to 96 kHz. The WM8731 is controlled via serial I2C bus interface*, which is
connected to pins on the Cyclone IV E FPGA. A schematic diagram of the audio circuitry is shown
in
Figure
4-23, and the FPGA pin assignments are listed in
using the WM8731 codec is available in its datasheet, which can be found on the manufacturer‟s
website, or in the DE2_115_datasheets\Audio CODEC folder on the DE2-115 System CD.
Table 4-16 Pin Assignments for ADV7123
FPGA Pin No.
PIN_E12
PIN_E11
PIN_D10
PIN_F12
PIN_G10
PIN_J12
PIN_H8
PIN_H10
PIN_G8
PIN_G11
PIN_F8
PIN_H12
PIN_C8
PIN_B8
PIN_F10
PIN_C9
PIN_B10
PIN_A10
PIN_C11
PIN_B11
PIN_A11
PIN_C12
PIN_D11
PIN_D12
PIN_A12
PIN_F11
PIN_G13
PIN_C13
PIN_C10
t
h
e
2
4
-
b
i
t
A
t
h
e
2
4
-
b
i
t
A
Description
VGA Red[0]
VGA Red[1]
VGA Red[2]
VGA Red[3]
VGA Red[4]
VGA Red[5]
VGA Red[6]
VGA Red[7]
VGA Green[0]
VGA Green[1]
VGA Green[2]
VGA Green[3]
VGA Green[4]
VGA Green[5]
VGA Green[6]
VGA Green[7]
VGA Blue[0]
VGA Blue[1]
VGA Blue[2]
VGA Blue[3]
VGA Blue[4]
VGA Blue[5]
VGA Blue[6]
VGA Blue[7]
VGA Clock
VGA BLANK
VGA H_SYNC
VGA V_SYNC
VGA SYNC
u
d
i
o
C
O
D
E
C
u
d
i
o
C
O
D
E
C
53
I/O Standard
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
Table
4-17. Detailed information for
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