AD9397SLASHPCB datasheet(15/28 Pages) AD

15 / 28 page

AD9397

Rev. 0 | Page 15 of 28

Hex

Address

Read/Write

or Read Only

Bits

Default

Value

Description

0x28

Read/Write

:2]

11000**

S Delay

ets the delay (in lines) from the VSYNC leading edge to the start

of active video.

[1:0]

******01

HS Delay MSB

29.

MSB, Register 0x

0x29

Read/Write

els) from the HSYNC leading edge to the

[7:0]

00000100

HS Delay

Sets the delay (in pix

start of active video.

0x2A

Read/Write

[3:0]

****0101

Line Width MSB

MSB, Register 0x2B.

0x2B

Read/Write

[7:0]

00000000

Line Width

Sets the width of the active video line in pixels.

0x2C

Read/Write

[3:0]

****0010

Screen Height MSB

MSB, Register 0x2D.

0x2D

Read/Write

[7:0]

11010000

Screen Height

Sets the height of the active screen in lines.

0x2E

Read/Write

[7]

0*******

Test 1

Must be written to 1 for proper operation.

0x2F

Read

[6]

*0******

TMDS Sync Detect

Detects a TMDS DE.

[5]

**0*****

TMDS Active

Detects a TMDS clock.

[3]

****0***

HDCP Keys Read

EEPROM keys is successful.

Returns 1 when read of

[2:0]

*****000

DVI Quality

Returns quality number based on DE edges.

0x30

Read

se (content is

[6]

*0******

DVI Content

Encrypted

This bit is high when HDCP decryption is in u

protected). The signal goes low when HDCP is not being use

Customers can use this bit to determine whether to allow

copying of the content. The bit should be sampled at regul

intervals because it can change on a frame-by-frame basis.

[5]

**0*****

DVI HSYNC Polarity

Returns DVI HSYNC polarity.

[4]

***0****

DVI VSYNC Polarity

Returns DVI VSYNC polarity.

0x31

Read/Write

]

nc pulse width for Macrovision

[7:4

1001****

MV Pulse Max

Sets the maximum pseudo sy

detection.

[3:0]

****0110

MV Pulse Min

nimum pseudo sync pulse width for Macrovision®

Sets the mi

detection.

0x32

Read/Write

[7]

0*******

MV Oversample En

crovision detection engine whether we are

Tells the Ma

oversampling or not.

[6]

*0******

MV Pal En

etection engine to enter PAL mode.

Tells the Macrovision d

[5:0]

unt Start

**001101

MV Line Co

Sets the start line for Macrovision detection.

0x33

Read/Write

[7]

1*******

MV Detect Mode

0 = standard definition.

1 = progressive scan mode.

[6]

0******

V Settings Override

for line counts and pulse widths.

0 = use hard-coded settings

1 = use I2C values for these settings.

[5:0]

*010101

V Line Count End

ection.

Sets the end line for Macrovision det

0x34

Read/Write

t 3 lines (SD mode

[7:6]

10******

MV Pulse Limit Set

Sets the number of pulses required in the las

only).

[5]

**0*****

Low Freq Mode

dio PLL to low frequency mode. Low frequency mode

Sets au

should only be set for pixel clocks <80 MHz.

[4]

***0****

Low Freq Override

frequency mode

Allows the previous bit to be used to set low

rather than the internal auto-detect.

[3]

****0***

Up Conversion Mode

0 = repeat Cr and Cb values.

1 = interpolate Cr and Cb values.

[2]

****0**

rCb Filter Enable

output.

Enables the FIR filter for 4:2:2 CrCb

[1]

******0*

CSC_Enable

Enables the color space converter (CSC). The default settings for

the CSC provide HDTV-to-RGB conversion.

ficients, including

Sets the fixed point position of the CSC coef

the A4, B4, and C4 offsets.

0x35

Read/Write

[6:5]

*01* ****

CSC_Mode

00 = ±1.0, −4096 to +4095.

01 =±2.0, −8192 to +8190.

1× = ±4.0, −16384 to +16380.

[4:0]

**01100

SC_Coeff_A1 MSB

MSB, Register 0x36.

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