PCF8833USLASH2DA datasheet(42/112 Pages) PHILIPS

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2003 Feb 14

Philips Semiconductors

Objective speciﬁcation

STN RGB - 132

× 132 × 3 driver

PCF8833

6.2.25

TEARING EFFECT LINE OFF

The Tearing effect line off (TEOFF) command ties the TE pin LOW.

Table 38 Tearing effect line off register bits

6.2.26

TEARING EFFECT LINE ON

The Tearing effect line on (TEON) command turns the TE line of the display on.

The TE signal indicates the start of a super-frame (equals 16 frames). In 4 kbyte colour mode a whole super-frame is

needed to write full colour depth. In 8-colour mode the available colour depth is written in one frame. The tearing signal

goes HIGH when the last line of a super-frame is read. The HIGH time is 850

µs (see Fig.21).

Table 39 Tearing effect line on register bits; note 1

Note

1. X = don’t care.

D/C

76543210

DEFAULT

000110100

34H

D/C

76543210

DEFAULT

000110101

35H

XXXXXXXX

00H

handbook, full pagewidth

MGU930

superframe period

(16 frames )

TE signal

850

µs

Fig.21 Tearing effect line: distribution of pulses.

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