PCF2119X_10 Datasheet, PDF (18/83 Pages) NXP Semiconductors – LCD controllers/drivers Single-chip LCD controller and driver

NXP Semiconductors
PCF2119x
LCD controllers/drivers
display
position
123 4 5
DDRAM ^{01 02 03 04 05}
address
1-line display
123 4 5
DDRAM
address
01 02 03 04 05
123 4 5
41 42 43 44 45
2-line display/MUX 1 : 9 mode
All addresses are shown in hex.
Fig 9. DDRAM to display mapping: left shift
30 31 32
1E 1F 20
14 15 16
0E 0F 10 line 1
14 15 16
4E 4F 50 line 2
mgk894
When data is written to or read from the DDRAM, wrap-around occurs from the end of one
line to the start of the next line. When the display is shifted each line wraps around within
itself, independently of the others. Thus all lines are shifted and wrapped around together.
The address ranges and wrap-around operations for the various modes are shown in
Table 7.
Table 7. Address space and wrap-around operation
Mode
1 × 32
2 × 16
Address space
00h to 4Fh
00h to 27h;
40h to 67h
Read/write wrap-around
(moves to next line)
4Fh to 00h
27h to 40h;
67h to 00h
Display shift wrap-around
(stays within line)
4Fh to 00h
27h to 00h;
67h to 40h
1 × 16
00h to 27h
27h to 00h
27h to 00h
9.2 CGROM
The Character Generator ROM (CGROM) contains 240 character patterns in a 5 × 8 dot
format from 8-bit character codes. Figure 10 to Figure 15 show the character sets that are
currently implemented.
PCF2119X
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 7 — 15 November 2010
© NXP B.V. 2010. All rights reserved.
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