VDP3108 datasheet(31/61 Pages) MICRONAS

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ADVANCE INFORMATION

VDP 3108

MICRONAS INTERMETALL

Table 3–2: Control Registers of the Fast Processor

– default values are initialized at reset

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

FP Sub

address

Function

Default

Name

Standard Selection

h’1b

Standard select:

PAL B,G,H,I

(50 Hz)

4.433618

NTSC M

(60 Hz)

3.579545

SECAM

(50 Hz)

4.286

NTSC44

(60 Hz)

4.433618

PAL M

(60 Hz)

3.575611

PAL N

(50 Hz)

3.582056

PAL 60

(60 Hz)

4.433618

NTSC COMB

(60 Hz)

3.579545

The activated routine will set up several blocks for the selected standard.

Option bits:

(OR for the new selected standard)

h’100

no hpll setup

h’200

no vertical setup

h’400

no acc setup

Note: After FP has switched to a new standard, the MSB of SDT is set

to 1 to indicate operation complete.

SDT

Color Processing

h’1c

NTSC tint angle,

$512 = $π/4

TINT

h’a0

ACC reference level to adjust Cr, Cb levels on picture bus.

(use main matrix)

ACCREF = 0: ACC function is disabled, chroma gain can be adjusted

via ACCb / ACCr register

ACC reference level for increased color saturation.

(use side matrix)

P/N: 2070*

S: 0*

P/N: 2263

ACCREF

h’a3

ACC multiplier value for SECAM Dr chroma component to adjust Cr level

on picture bus. (use main matrix)

b[10:0]

eeemmmmmmmm m * 2^–e

ACC multiplier value for SECAM Dr chroma component for increased

color saturation (use side matrix)

S: 1496*

S:1532

ACCr

h’a4

ACC multiplier value for SECAM Db chroma component to adjust Cb lev-

el on picture bus. (use main matrix)

b[10:0]

eeemmmmmmmm m * 2^–e

ACC multiplier value for SECAM Dr chroma component for increased

color saturation (use side matrix)

S: 1155*

S: 1177

ACCb

h’a8

amplitude color killer level (0:killer disabled)

KILVL

h’a9

amplitude color killer hysteresis

KILHY

VDP3108 Datasheet(PDF) 31 Page - Micronas

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