参数资料
型号: IP-SDI
厂商: Altera
文件页数: 91/140页
文件大小: 0K
描述: IP VIDEO INTERFACE - SDI
标准包装: 1
系列: *
类型: MegaCore
功能: 视频系统用串行数字接口
许可证: 初始许可证
Chapter 4: SDI Audio IP Cores
SDI Audio Embed MegaCore Function
Parameters
Table 4–1 lists the parameters for the SDI Audio Embed MegaCore function.
Table 4–1. SDI Audio Embed MegaCore Function Parameters
4–3
Parameter
Number of supported audio
groups
Async Audio Interface
Frequency of fix_clk
Channel status RAM
Frequency sine wave generator
Include clock
Include Avalon-ST interface
Include Avalon-MM control
interface
Value
1, 2, 3, 4
On or Off
0, 24.576, 25, 50, 100,
200
0, 1, 2
On or Off
On or Off
On or Off
On or Off
Description
Specifies the maximum number of audio groups supported.
Each audio group consists of 4 audio channels (2 channel
pairs). You must specify all the four channels to the same
sample frequencies.
Turn on to enable the Asynchronous input. In this mode, the
audio clock provides higher than 64* sample rate.
Specifies the frequency of the fix_clk signal.
Enables storage of the custom channel status data.
Select 1 to generate a single channel status RAM, or 2 to
generate separate RAMs for each input audio pair.
Turn on to enable a four-frequency sine wave generator. You
can use the four-frequency sine wave generator as a test source
for the audio embedder.
Turn on to enable a 48-kHz pulse generator synchronous to the
video clock. You can use the 48-kHz pulse generator to request
data from a sample rate convertor.
When you turn on the Frequency Sine Wave Generator
parameter, the core automatically includes this pulse generator.
Turn on to include the SDI Clocked Audio Output MegaCore.
When you turn on this parameter, the Avalon-ST interface
signals in Table 4–14 appear at the top level. Otherwise, the
audio input signals in Table 4–4 appear at the top level.
Turn on to include the Avalon-MM control interface.
When you turn on this parameter, the register interface signals
in Table 4–7 appear at the top level. Otherwise, the direct
control interface signals in Table 4–6 appear at the top level.
February 2013
Altera Corporation
Serial Digital Interface (SDI) MegaCore Function
User Guide
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