Channel Status Copyright Value Assertion; Monitoring Change Of Audio Sampling Frequency - Analog Devices Advantiv ADV7604 Hardware Manual

7.18.7 Channel Status Copyright Value Assertion

It is possible to overwrite the copyright value of the channel status bit that is passed to the SPDIF
output. This is done via the
CS_COPYRIGHT_MANUAL, HDMI Map, Address 0x50, [1]
Function
CS_COPYRIGHT_MANU
AL
0
1
CS_COPYRIGHT_VALUE, HDMI Map, Address 0x50, [0]
Function
CS_COPYRIGHT_VALU
E
0
1

7.18.8 Monitoring Change of Audio Sampling Frequency

The ADV7604 features the
frequency field of the channel status bits.
NEW_SAMP_RT_RAW, Reserved Register, IO Map, Address 0x7E, [4]
Function
NEW_SAMP_RT_RAW
0
1
Important: The NEW_SAMP_RT_RAW
0. This prevents the notification of a change from a valid to an invalid audio sampling frequency
readback in the channel status bits, and vice versa.
Rev. F August 2010
CS_COPYRIGHT_MANUAL
Description
Automatic Channel Status copyright control
Manual control Channel Status copyright control. The value of the
channel status bit passed to SPDIF output is manually set by
CS_COPYRIGHT_VALUE
Description
Copyright value of channel status bit is 0. Valid only if
CS_COPYRIGHT_MANUAL is set to 1
Copyright value of channel status bit is 1. Valid only if
CS_COPYRIGHT_MANUAL is set to 1
NEW_SAMP_RT_RAW
Description
Audio sampling frequency field in channel status bit has not
changed.
Audio sampling frequency field in channel status bit has changed.
NEW_SAMP_RT_RAW is reset to 0 by setting
NEW_SAMP_RT_CLR (IO Map, Address 0x80[3]) to 1.
flag does not trigger if
157
and CS_COPYRIGHT_VALUE
flag to monitor changes in the audio sampling
CS_DATA_VALID_RAW
ADV7604
controls.
is set to