VPC3230D datasheet(47/78 Pages) MICRONAS

47 / 78 page

ADVANCE INFORMATION

VPC 323xD, VPC 324xD

Micronas

Table 3–3: Control Registers of the Fast Processor that are used for the control of DDP 3300A

– this function is only available in the 50 Hz version (VPC 324xD)

– default values are initialized at reset

– * indicates: register is initialized according to the current standard when SDT register is changed

FP Sub-

address

Function

Default

Name

FP Display Control Register

h’130

White Drive Red

(0...1023)

700

WDR 1)

h’131

White Drive Green

(0...1023)

700

WDG 1)

h’132

White Drive Blue

(0...1023)

700

WDB 1)

h’139

Internal Brightness, Picture (0 ..511), the center value is 256, the range

allows for both increase and reduction of brightness.

256

IBR

h’13c

Internal Brightness, measurement (0...511), the center value is 256,

the brightness for measurement can be set to measure at higher cutoff

current. The measurement brightness is independent of the drive val-

ues.

256

IBRM

h’13a

Analog Brightness for external RGB (0...511), the center value is 256,

the range allows for both increase and reduction of brightness.

256

ABR

h’13b

Analog Contrast for external RGB (0...511)

350

ACT

1) The white drive values will become active only after writing the blue value WDB, latching of new values is indi-

cated by setting the MSB of WDB.

FP Display Control Register, BCL

h’144

BCL threshold current, 0...2047 (max ADC output ~1152)

1000

BCLTHR

h’142

BCL time constant 0...15

→13 ... 1700 msec

BCLTM

h’143

BCL loop gain. 0..15

BCLG

h’145

BCL minimum contrast 0 ...1023

307

BCLMIN

h’105

Test register for BCL/EHT comp. function, register value:

normal operation

stop ADC offset compensation

x>1

use x in place of input from Measurement ADC

0BCLTST

FP Display Control Register, Deflection

h’103

interlace offset, –2048 ...2047

This value is added to the SAWTOOTH output during one field.

0INTLC

h’102

discharge sample count for deflection retrace,

SAWTOOTH DAC output impedance is reduced for DSCC lines after

vertical retrace.

7DSCC

h’11f

vertical discharge value,

SAWTOOTH output value during discharge operation, typically same

as A0 init value for sawtooth.

–1365

DSCV

h’10b

EHT (electronic high tension) compensation coefficient, 0...511

EHT

h’10a

EHT time constant. 0 ..15

→ 3.2 ...410 msec

EHTTM

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