pcf8558 NXP Semiconductors, pcf8558 Datasheet - Page 8

• Manufacturer Part Number: pcf8558
• Description: Universal Lcd Driver For Small Graphic Panels
• Manufacturer: NXP Semiconductors

Philips Semiconductors
ADDRESSING
The data is downloaded into the matrix of the PCF8558 as indicated in Figs 4 and 5.
The display RAM has a matrix of 40 by 101 bits (5 by 101 bytes). The columns are addressed by the address pointer.
After writing one byte the pointer is set to the next byte. Control of address increment, horizontal or vertical, is by bit V in
the command byte.
DATA STRUCTURE
1998 Apr 07
handbook, full pagewidth
handbook, full pagewidth
Universal LCD driver for small graphic
panels
LSB
MSB
a.
0 5
1 6
2 7
3 8
4 9
Order of writing data bytes into RAM (V = 1).
address 2
address 1
address 0
Fig.5 Order of writing data bytes into RAM.
Fig.4 RAM format, addressing.
8
display line 0 to 7
display line 8 to 15
display line 16 to 23
display line 24 to 31
display line 32 to 39
X
b.
101
202
303
404
0
Order of writing data bytes into RAM (V = 0).
102
203
304
405
1
103
204
305
406
2
. . .
. . .
. . .
. . .
. . .
address 100
address 98
address 99
MGG562
Objective specification
000
001
010
011
100
PCF8558
MGG561
Y address