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PCF88331 Datasheet(PDF) 42 Page - NXP Semiconductors |
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PCF88331 Datasheet(HTML) 42 Page - NXP Semiconductors |
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42 / 112 page  2003 Feb 14 42 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 1 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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