PCF2114 Просмотр технического описания (PDF) - Philips Electronics

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производитель

PCF2114

LCD controller/drivers

Philips Electronics 

Philips Semiconductors

LCD controller/drivers

Product specification

PCF2116 family

8.17 Programming MUX 1 : 16 displays with the

PCF2114x

The PCF2114x can be used in:

• 1-line mode to drive a 2-line display

• 2 × 12 characters with MUX rate 1 : 16, resulting in

better contrast. The internal data flow of the chip is

optimized for this purpose.

With the ‘Function set’ instruction M and N are set to 0, 0.

Figures 15 to 17 show DDRAM addresses of the display

characters. The second row of each table corresponds to

either the right half of a 1-line display or to the second line

of a 2-line display. Wrap around of data during display shift

or when writing data is non-standard.

handbook, full pagewidth

display position

DDRAM address

1 2 3 4 5 6 7 8 9 10 11 12

00 01 02 03 04 05 06 07 08 09 0A 0B

display position

DDRAM address

13 14 15 16 17 18 19 20 21 22 23 24

0C 0D 0E 0F 10 11 12 13 14 15 16 17

MLB899

Fig.15 DDRAM-to-display mapping; no shift (PCF2114x).

handbook, full pagewidth

display position

DDRAM address

1 2 3 4 5 6 7 8 9 10 11 12

4F 00 01 02 03 04 05 06 07 08 09 0A

display position

DDRAM address

13 14 15 16 17 18 19 20 21 22 23 24

0B 0C 0D 0E 0F 10 11 12 13 14 15 16

MLB900

Fig.16 DDRAM-to-display mapping; right shift (PCF2114x).

handbook, full pagewidth

display position

DDRAM address

1 2 3 4 5 6 7 8 9 10 11 12

01 02 03 04 05 06 07 08 09 0A 0B 0C

1997 Apr 07

display position

DDRAM address

13 14 15 16 17 18 19 20 21 22 23 24

0D 0E 0F 10 11 12 13 14 15 16 17 18

MLB901

Fig.17 DDRAM-to-display mapping; left shift (PCF2114x).

21

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