AD9880/PCB Analog Devices Inc, AD9880/PCB Datasheet - Page 28

• Manufacturer Part Number: AD9880/PCB
• Description: BOARD EVALUATION PCB AD9880
• Manufacturer: Analog Devices Inc

Specifications of AD9880/PCB

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD9880
Hex
Address
0x2F
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
Read/Write
or Read Only
Read
Read
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Bits
[6]
[5]
[4]
[3]
[2:0]
[6]
[5]
[4]
[3:0]
[7:4]
[3:0]
[7]
[6]
[5:0]
[7]
[6]
[5:0]
[7:6]
[5]
[4]
[3]
[2]
[1]
[6:5]
[4:0]
[7:0]
[4:0]
[7:0]
Default
Value
*0******
**0*****
***0****
****0***
*****000
*0******
**0*****
***0****
****0000
1001****
****0110
0*******
*0******
**001101
1*******
*0******
**010101
10******
**0*****
***0****
****0***
*****0**
******0*
*01* ****
***01100
01010010
***01000
00000000
Register Name
TMDS Sync Detect
TMDS Active
AV Mute
HDCP Keys Read
HDMI Quality
HDMI Content
Encrypted
DVI Hsync Polarity
DVI Vsync Polarity
HDMI Pixel
Repetition
MV Pulse Max
MV Pulse Min
MV Oversample En
MV Pal En
MV Line Count Start
MV Detect Mode
MV Settings Override
MV Line Count End
MV Pulse Limit Set
Low Freq Mode
Low Freq Override
Up Conversion Mode
CrCb Filter Enable
CSC_Enable
CSC_Mode
CSC_Coeff_A1 MSB
CSC_Coeff_A1
CSC_Coeff_A2 MSB
CSC_Coeff_A2
Rev. 0 | Page 28 of 64
Detects a TMDS DE.
Detects a TMDS clock.
Tells the Macrovision detection engine to enter PAL mode.
Sets the start line for Macrovision detection.
Description
Gives the status of AV mute based on general control packets.
Returns 1 when read of EEPROM keys is successful.
Returns quality number based on DE edges.
This bit is high when HDCP decryption is in use (content is
protected). The signal goes low when HDCP is not being used.
Customers can use this bit to determine whether or not to allow
copying of the content. The bit should be sampled at regular
intervals since it can change on a frame by frame basis.
Returns DVI Hsync polarity.
Returns DVI Vsync polarity.
Returns current HDMI pixel repetition amount. 0 = 1×, 1 = 2×, ...
The clock and data outputs automatically de-repeat by this
value.
Sets the max pseudo sync pulse width for Macrovision
detection.
Sets the min pseudo sync pulse width for Macrovision detection.
Tells the Macrovision detection engine whether we are
oversampling or not.
0 = standard definition.
1 = progressive scan mode.
0 = use hard coded settings for line counts and pulse widths.
1 = use I
Sets the end line for Macrovision detection.
Sets the number of pulses required in the last 3 lines (SD mode
only).
Sets whether the Audio PLL is in low freq. mode or not. Low
frequency mode should only be set for pixel clocks <80 MHz.
Allows the previous bit to be used to set low frequency mode
rather than the internal auto-detect.
0 = Repeat Cr and Cb values.
1 = Interpolate Cr and Cb values.
Enables the FIR filter for 4:2:2 CrCb output.
Enables the color space converter (CSC). The default settings for
the CSC provide HDTV to RGB conversion.
Sets the fixed point position of the CSC coefficients. Including
the A4, B4, C4, offsets.
00 = ±1.0, −4096 to 4095
01 =±2.0, −8192 to 8190
1× = ±4.0, −16384 to 16380
MSB, Register 0x36.
Color space converter (CSC) coefficient for equation:
R
G
B
MSB, Register 0x38.
Color space converter (CSC) coefficient for equation:
R
G
B
OUT
OUT
B
OUT
OUT
B
OUT
OUT
= (A1 × R
= (C1 × R
= (A1 × R
= (C1 × R
= (B1 × R
= (B1 × R
2
C values for these settings.
IN
IN
IN
IN
IN
IN
) + (C2 × G
) + (C2 × G
) + (B2 × G
) + (B2 × G
) + (A2 × G
+ (A2 × G
IN
IN
IN
IN
IN
IN
) + (A3 × B
) + (C3 × B
) + (C3 × B
) + (B3 × B
) + (B3 × B
) + (A3 × B
IN
IN
IN
IN
IN
IN
) + A4
) + B4
) + C4
) + B4
) + C4
) + A4