Sdi audio clocked input signals, Sdi audio clocked input signals -8 – Altera SDI Audio IP Cores User Manual
Page 28
Table 4-11: SDI Audio Extract Direct Control Interface Signals
Description
Direction
Width
Signal
Clock for the direct control interface.
Input
[0:0]
reg_clk
This signal does the same function as the audio control register.
Input
[7:0]
audio_control
This signal does the same function as the audio presence register.
Input
[7:0]
audio_presence
This signal does the same function as the audio status register.
Output
[7:0]
audio_status
This signal does the same function as the SD EDP presence register.
Output
[7:0]
sd_edp_presence
This signal does the same function as the error status register.
Output
[7:0]
error_status
Set any bit of this port high for a single cycle of
reg_clk
to clear
the corresponding bit of the
error_status
signal.
Setting any of bits [3:0] high for a clock cycle resets the entire 4-bit
error counter.
Input
[15:0]
error_reset
This signal does the same function as the FIFO status register.
Input
[7:0]
fifo_status
Set high for a single cycle of
reg_clk
to clear the underflow or
overflow field of the
fifo_status
signal.
Input
[7:0]
fifo_reset
This signal does the same function as the clock status register.
Input
[7:0]
clock_status
Channel status RAM address. The contents of the selected address
will be valid on the
csram_data
signal after one cycle of
reg_clk
.
Input
[5:0]
csram_addr
Channel status data. This signal does the same function as the
channel status RAM.
Input
[7:0]
csram_data
Related Information
•
on page 5-4
•
SDI Audio IP Register Interface Signals
on page 4-10
All SDI Audio IP cores use the same register interface signals.
SDI Audio Clocked Input Signals
The following tables list the signals for the SDI Audio Clocked Input IP cores.
This table lists the input and output signals.
Table 4-12: SDI Audio Clocked Input Input and Output Signals
Description
Direction
Width
Signal
Audio input clock.
Input
[0:0]
aes_clk
Audio data enable.
Input
[0:0]
aes_de
SDI Audio IP Interface Signals
Altera Corporation
UG-SDI-AUD
SDI Audio Clocked Input Signals
4-8
2014.06.30