Data Sheet
ADV7390/ADV7391/ADV7392/ADV7393
Rev. G | Page 65 of 108
EXTERNAL HORIZONTAL AND VERTICAL SYNCHRONIZATION CONTROL
For timing synchronization purposes, the ADV739x is able to accept either EAV/SAV time codes embedded in the input pixel data or
external synchronization signals provided on the HSYNC and VSYNC pins (se
e Table 53). It is also possible to output synchronization
Table 53. Timing Synchronization Signal Input Options
Signal
Pin
Condition
SD HSYNC In
HSYNC
SD slave timing (Mode 1, Mode 2, or Mode 3) selected (Subaddress
0x8A[2:0])1SD VSYNC/FIELD In
VSYNC
SD slave timing (Mode 1, Mode 2, or Mode 3) selected (Subaddress
0x8A[2:0])1ED/HD HSYNC In
HSYNC
ED/HD timing synchronization inputs enabled (Subaddress 0x30, Bit 2 = 0)
ED/HD VSYNC/FIELD In
VSYNC
ED/HD timing synchronization inputs enabled (Subaddress 0x30, Bit 2 = 0)
1 SD and ED/HD timing synchronization outputs must also be disabled (Subaddress 0x02[7:6] = 00).
Table 54. Timing Synchronization Signal Output Options
Signal
Pin
Condition
SD HSYNC Out
HSYNC
SD timing synchronization outputs enabled (Subaddress 0x02, Bit 6 =
1)1SD VSYNC/FIELD Out
VSYNC
SD timing synchronization outputs enabled (Subaddress 0x02, Bit 6 =
1)1ED/HD HSYNC Out
HSYNC
ED/HD timing synchronization outputs enabled (Subaddress 0x02, Bit 7 =
1)2ED/HD VSYNC/FIELD Out
VSYNC
ED/HD timing synchronization outputs enabled (Subaddress 0x02, Bit 7 =
1)21 ED/HD timing synchronization outputs must also be disabled (Subaddress 0x02, Bit 7 = 0).
2 ED/HD timing synchronization inputs must also be disabled; that is, embedded EAV/SAV timing codes must be enabled (Subaddress 0x30, Bit 2 = 1).
ED/HD Input Sync Format
(Subaddress 0x30,
Bit 2)
ED/HD HSYNC Control
(Subaddress 0x34,
Bit 1)
ED/HD Sync
Output Enable
(Subaddress 0x02,
Bit 7)
SD Sync
Output Enable
(Subaddress 0x02,
Bit 6)
Signal on HSYNC Pin
Duration
X
0
Tristate
N/A
X
0
1
Pipelined SD HSYNC
section.
0
1
X
Pipelined ED/HD HSYNC
As per HSYNC
timing.
1
0
1
X
Pipelined ED/HD HSYNC
based on AV Code H bit
Same as line
blanking interval.
X
1
X
Pipelined ED/HD HSYNC
based on horizontal
counter
Same as embedded
HSYNC.
1 In all ED/HD standards where there is an HSYNC output, the start of the HSYNC pulse is aligned with the falling edge of the embedded HSYNC in the output video.
2 X = don’t care.
ED/HD Input
Sync Format
(Subaddress
0x30, Bit 2)
ED/HD VSYNC
Control
(Subaddress
0x34, Bit 2)
ED/HD Sync
Output Enable
(Subaddress
0x02, Bit 7)
SD Sync
Output Enable
(Subaddress
0x02, Bit 6)
Video Standard
Signal on VSYNC Pin
Duration
x
0
x
Tristate
N/A
x
0
1
Interlaced
Pipelined SD VSYNC/field
section.
0
1
x
Pipelined ED/HD VSYNC
or field signal
As per VSYNC or
field signal timing.
1
0
1
x
All HD interlaced
standards
Pipelined field signal
based on AV Code F bit
Field.
1
0
1
x
All ED/HD
progressive
standards
Pipelined VSYNC based
on AV Code V bit
Vertical blanking
interval.