Analog Devices ADV7850 Hardware Manual page 408

Function
mv_cs_det_st
0 
1
cp_cgms_chngd_st, IO, Address 0x48[2] (Read Only)
This readback indicates the latched signal status of the CP CGMS changed interrupt signal. Once set, this bit remains high until the
interrupt is cleared via cp_cgms_chngd_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
cp_cgms_chngd_st
0 
1
The interrupt_status_3 register consists of the following fields.
avlink_rx_ready_st, Addr 40 (IO), Address 0x4D[3] (Read Only)
Latched status of AV.link Receiver ready interrupt signal. Once set this bit will remain high until the interrupt has been cleared via
avlink_rx_ready_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
avlink_rx_ready_st
0 <<
1
avlink_tx_ready_st, Addr 40 (IO), Address 0x4D[0] (Read Only)
Latched status of avlink_tx_ready_raw signal. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
When the AV.link TX successfully sends the current message this bit is set. Once set this bit will remain high until the interrupt has
been cleared via avlink_tx_ready_clr.
Function
avlink_tx_ready_st
0 <<
1
The interrupt_status_4 register consists of the following fields.
ttxt_avl_st, IO, Address 0x52[7] (Read Only)
This readback indicates the latched status of theteletext data available interrupt signal. Once set, this bit remains high until the interrupt
is cleared via ttxt_avl_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Function
ttxt_avl_st
0 
1
vitc_avl_st, IO, Address 0x52[6] (Read Only)
This readback indicates the latched status of the VITC data available interrupt signal. Once set, this bit remains high until the interrupt
is cleared via vitc_avl_clr. This bit is only valid if enabled via the corresponding INT1 or INT2 interrupt mask bit.
Rev. A May 2012
Description
Macrovision color stripe detected interrupt event not occurred
Macrovision color stripe detected interrupt event occurred
Description
CGMS data changed, interrupt event occurred
CGMS data changed, interrupt event occurred
Description
AV.link message received interrupt has not occurred.
AV.link message received interrupt has occurred.
Description
No change
Message transmitted successfully
Description
No teletext data available, no interrupt
Teletext data available, interrupt event occurred
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ADV7850