12
FN6164.3
February 29, 2012
Register Listing
ADDRESS
REGISTER
(DEFAULT VALUE)
BITS
FUNCTION NAME
DESCRIPTION
STATUS AND INTERRUPT REGISTERS
0x01
Selected Input Channel
Characteristics, (read only)
1:0
SYNC Type
00: Automatic Sync Selection logic could not find good sync on
H, V, or SOG (Automatic Sync mode only)
01: SYNC on HSYNC/VSYNC
10: CSYNC on HSYNC
11: CSYNC on Green Channel (SOG)
2
HSYNC Polarity
0: HSYNC Active High
1: HSYNC Active Low
3
VSYNC Polarity
0: VSYNC Active High
1: VSYNC Active Low
4
Tri-level Sync
0: Bi-level SOG (if SOG is active)
1: Tri-level SOG
5
Interlaced
(Only for CSYNC)
0: Non-interlaced or progressive signal
1: Interlaced signal
6
Macrovision
0: No Macrovision detected
1: Macrovision encoding detected
7
PLL Locked
0: PLL unlocked
1: PLL locked to incoming HSYNC
0x02
CH0 and CH1 Activity
Status, (read only)
0
HSYNC0 Activity
0: HSYNC0 Inactive
1: HSYNC0 Active – There is a periodic signal with frequency
>1kHz and consistent low/high times on this input
1
VSYNC0 Activity
0: VSYNC0 Inactive
1: VSYNC0 Active – There is a periodic signal with frequency
>20Hz and consistent low/high times on this input
3:2
SOG0 Activity
00: SOG0 Inactive – No transitions detected at the SOG Slicer
output.
01: SOG0 Active – Non-periodic transitions detected at the
SOG Slicer output – possibly valid SOG with a bad slicer
threshold, or simply video with no valid SOG.
10: SOG0 Periodic – There is a periodic signal with frequency
>1kHz and consistent low/high times on this input. This is
most likely a valid SOG signal.
4
HSYNC1 Activity
See HSYNC0 Activity description
5
VSYNC1 Activity
See VSYNC0 Activity description
7:6
SOG1 Activity
See SOG0 Activity description
0x03
CH2 Activity Status,
(read only)
0
HSYNC2 Activity
See HSYNC0 Activity description
1
VSYNC2 Activity
See VSYNC0 Activity description
3:2
SOG2 Activity
See SOG0 Activity description
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