Analog Devices ADV7850 Hardware Manual page 420

Function
fifo_underflo_st
0 
1
fifo_overflo_st, IO, Address 0x7F[5] (Read Only)
This readback indicates the latched status for the audio FIFO overflow interrupt. Once set, this bit remains high until the interrupt is
cleared via fifo_overflo_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
fifo_overflo_st
0 
1
cts_pass_thrsh_st, IO, Address 0x7F[4] (Read Only)
This readback indicates the latched status for the ACR CTS value exceed threshold interrupt. Once set, this bit remains high until the
interrupt is cleared via cts_pass_thrsh_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
cts_pass_thrsh_st
0 
1
change_n_st, IO, Address 0x7F[3] (Read Only)
This readback indicates the latched status for the ACR N value changed interrupt. Once set, this bit remains high until the interrupt is
cleared via change_n_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
change_n_st
0 
1
packet_error_st, IO, Address 0x7F[2] (Read Only)
This readback indicates the latched status for the packet error interrupt. Once set, this bit remains high until the interrupt is cleared via
packet_error_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
packet_error_st
0 
1
audio_pckt_err_st, IO, Address 0x7F[1] (Read Only)
This readback indicates the latched status for the audio packet error interrupt. Once set, this bit remains high until the interrupt is
cleared via audio_pckt_err_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit
Function
audio_pckt_err_st
0 
1
Rev. A May 2012
Description
Audio FIFO not underflowed
Audio FIFO underflowed
Description
Audio FIFO not overflowed
Audio FIFO overflowed
Description
Audio clock regeneration CTS value not passed the threshold
Audio clock regeneration CTS value changed more than threshold
Description
Audio clock regeneration N value not changed
Audio clock regeneration N value changed
Description
No uncorrectable error detected in packet header, interrupt not generated
Uncorrectable error detected in unknown packet (in packet header), interrupt generated
Description
No uncorrectable error detected in audio packets, interrupt not generated
Uncorrectable error detected in audio packet, interrupt generated
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ADV7850