PCF8833USLASH2DA datasheet(29/112 Pages) PHILIPS

29 / 112 page

2003 Feb 14

Philips Semiconductors

Objective speciﬁcation

STN RGB - 132

× 132 × 3 driver

PCF8833

The following steps must be followed to enter the Partial

mode:

• Set VOP (when the MMOTP cells are used the VOP for

the Partial mode is predefined)

• Set bias system (when the MMOTP cells are used the

bias system for the Partial mode is predefined)

• Set start address of active area AA1S[7:0]; can be set in

multiples of 4

• Set end address of active area AA1E[7:0] + 1; can be

set in multiples of 4

• Enter Partial mode (PTLON).

When setting the addresses the following conditions must

be ensured:

• (AA1E + 1) − AA1S = 32 (only 1 partial display size

setting is possible)

• AA1 ≥ 0 and AA1E ≤ 131.

Figure 8 shows how to use the Partial mode with Line

Address Order (LAO) set to logic 0. Figure 9 gives an

example of Partial mode with LAO set to logic 1, and

Fig.10 shows the position of the partial area when the start

address of the active area is AA1S

≥ (131 + 1) − 31, i.e.

AA1S

≥ 101 (AA1S must be set in multiples of 4).

Figure 11 shows how the Partial mode can be used.

MGU917

handbook, full pagewidth

127

128

129

130

131

ROW 3

ROW 1

ROW 0

ROW 2

ROW 7

ROW 5

ROW 4

ROW 6

ROW 11

ROW 9

ROW 8

ROW 10

ROW 13

ROW 12

ROW 31

ROW 29

ROW 28

ROW 30

ROW 35

ROW 33

ROW 32

ROW 34

ROW 39

ROW 37

ROW 36

ROW 38

ROW 41

ROW 40

ROW 42

ROW 27

ROW 25

ROW 24

ROW 26

ROW 129

ROW 127

ROW 128

ROW 131

ROW 130

AA1S [7:0] = 4

AA1E [7:0] +1 = 36

RAM

display

partial area

rows

Fig.8 Partial Display mode for LAO = 0.

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