Analog Devices Advantiv ADV7619 Hardware User's Manual page 169

Hardware User Guide
NEW_AVI_INFO_MB2 , IO, Address 0x7C[0]
INT2 interrupt mask for new AVI InfoFrame detection interrupt. When set a new AVI InfoFrame detection event will cause
NEW_AVI_INFO_ST to be set and an interrupt will be generated on INT2.
Function
NEW_AVI_INFO_MB2
0 (default)
1
See Figure 68 through Figure 70.
xxx_RAW
INTERNAL
SAMPLING
STATUS FLAG
INTERNAL
SAMPLING
PULSE FLAG
AVI INFOFRAME
DETECTION
INTERNAL FLAG
AVI_INFO_RAW
AVI_INFO_ST
Description
Disables new SPD InfoFrame interrupt for INT2
Enables new SPD InfoFrame interrupt for INT2
CHANGE
DETECTION
(RISING AND
FALLING EDGE)
CHANGE
DETECTION
(RISING EDGE)
Figure 68. Level and Edge Sensitive Raw, Status and Interrupt Generation
AVI INFOFRAME
DETECTED
AVI_INFO_CLR
SET TO 1
TIME TAKEN BY
THE CPU TO CLEAR
AVI_INFO_ST
Figure 69. AVI_INFO_RAW and AVI_INFO_ST Timing
Rev. A | Page 169 of 204
xxx_ST
HOLD UNTIL APPLY
CLEARED MASK
xxx_CLR xxx_MB1
yyy_CLR yyy_MB1
HOLD UNTIL APPLY
CLEARED MASK
yyy_RAW yyy_ST
INTERRUPT PATH FOR LEVEL
SENSITIVE INTERRUPTS
OR
OUTPUT
INTERRUPT PATH FOR EDGE
SENSITIVE INTERRUPTS
NO AVI
INFOFRAME
DETECTED
AVI_INFO_CLR
SET TO 1
TIME TAKEN BY
THE CPU TO CLEAR
AVI_INFO_ST
UG-237
INT