SAA4945H/V1 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

SAA4945H/V1

LIne MEmory noise Reduction IC (LIMERIC)

Philips Electronics 

Philips Semiconductors

LIne MEmory noise Reduction IC

(LIMERIC)

Preliminary specification

SAA4945H

Status register

Table 15 Status register usage

USE

Purpose

Address

Read/write

internal settings

F4

write

ACTION

Table 16 Status register content

MSB

Tctrl3

Tctrl2

Tctrl1

X

ExThr

Wv

DEM

LSB

WES

Table 17 Status register description

BIT NAME

DESCRIPTION

0 WES Write Enable Select

0: data coincides with write enable (both input and output)

1: data is delayed over one clock period with respect to the write enable (both input and output)

see Fig.4

1 DEM Demo Mode

0: demo mode disabled

1: demo mode on; the noise reduction circuit is switched on for the left half of the screen - the noise

reduction is disabled (split screen function) for the right half of the screen

2 Wv Weave

0: enable weave

1: disable weave

3 ExThr External Threshold control bit

0: N_thr calculated by noise estimator

1: value of N_thr from register F9 is used

4X

don’t care

5 Tctrl1 Test control 1

0: normal operation

1: test mode

6 Tctrl2 Test control 2

0: normal operation

1: test mode

5 Tctrl3 Test control 3

0: normal operation

1: test mode

1997 Jun 10

13

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