Cirrus-logic EP93xx Bedienungsanleitung PDF herunterladen (Seite 238)

7-56 DS785UM1

Raster Engine With Analog/LCD Integrated Timing and Interface

EP93xx User’s Guide

Address: 0x8003_0214

Default: 0x0000_0000

Definition: AC Toggle Rate register

Bit Descriptions:

RSVD: Reserved - Unknown during read

RATE: Rate - Read/Write

The RATE field must be written with a value that is one

less than the number of horizontal video lines before the

AC LCD bias signal is to toggle. Care must be taken when

choosing this value while using the grayscale dithering

algorithms, as a DC build-up may occur if the pixel timing

for the ‘on’ state of the pixel is concurrent with the bias

Address: 0x8003_0234

Default: 0x0000_0010

Definition: FIFO Refill Level register

Bit Descriptions:

RSVD: Reserved - Unknown during read

LEVEL: Level - Read/Write

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

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31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

1514131211109876543210

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Cirrus-logic EP93xx Bedienungsanleitung Seite 238