Analog Devices Advantiv ADV7604 Hardware Manual page 264

CH1_CUR_POL_HS Currently Detected Polarity of HSync SSPD for channel 1 , CP Map,
Address 0xB5, [3], Read only
Function
CH1_CUR_POL_HS
0
1
CH2_CUR_POL_HS Currently Detected Polarity of HSync SSPD for channel 2 , CP Map,
Address 0x4F, [3], Read only
Function
CH2_CUR_POL_HS
0
1
CH1_HS_ACT Activity of HSync SSPD for channel 1 , CP Map, Address 0xB5, [4], Read only
CH1_HS_ACT is set to 1 to indicate that the SSPD section of the synchronization channel has 1
detected activity on its input HSync signal.
The SSPD section continuously monitors the HSync input signal over timing windows of 2
clock periods (refer to
•
CH1_HS_ACT
signal
•
CH1_HS_ACT
the HSync signal
Function
CH1_HS_ACT
0
1
CH2_HS_ACT Activity of HSync SSPD for channel 2 , CP Map, Address 0x4F, [4], Read only
CH2_HS_ACT is set to 1 to indicate that the SSPD section of the synchronization channel has two
detected activities on its input HSync signal.
The SSPD section continuously monitors the HSync input signal over timing windows of 2
clock periods (refer to
•
CH2_HS_ACT
signal
•
CH2_HS_ACT
the HSync signal
Function
CH2_HS_ACT
0
1
Rev. F August 2010
Description
HSync input to channel 1 SSPD has positive polarity
HSync input to channel 1 SSPD has negative polarity
Description
HSync input to channel 2 SSPD has positive polarity
HSync input to channel 2 SSPD has negative polarity
Figure 85). CH1_HS_ACT
is set to 1 if the SSPD has detected eight edges or four periods on the HSync
is set to 0 if the SSPD has detected less than eight edges or four periods on
Description
No activity detected
HSync input to channel 1 carries an active signal
Figure 85). CH2_HS_ACT
is set to 1 if the SSPD has detected eight edges or four periods on the HSync
is set to 0 if the SSPD has detected less than eight edges or four periods on
Description
No activity detected
HSync input to channel 2 carries an active signal
is updated at the end of each window, as follows:
is updated at the end of each window, as follows:
264
ADV7604
22
crystal
22
crystal