pcf8814 NXP Semiconductors, pcf8814 Datasheet - Page 10

• Manufacturer Part Number: pcf8814
• Description: Pcf8814 65 X 96 Pixels Matrix Lcd Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.1.1
Two different addressing modes are possible: horizontal
addressing mode and vertical addressing mode.
In the horizontal addressing mode (V = 0), the X address
increments after each byte. After the last X address, X
wraps around to 0 and Y increments to address the next
row (see Fig.4).
2003 Mar 13
handbook, full pagewidth
handbook, full pagewidth
65
H
96 pixels matrix LCD driver
ORIZONTAL
Fig.5 Sequence of writing data bytes into the RAM with vertical addressing (V = 1).
Fig.4 Sequence of writing data bytes into RAM with horizontal addressing (V = 0).
/
VERTICAL ADDRESSING
768
192
288
384
480
576
672
96
8
2
0
0
0
1
3
4
5
6
7
0
769
193
289
385
481
577
673
97
10
1
9
194
770
290
386
482
578
674
98
2
X address
X address
10
In the vertical addressing mode (V = 1), the Y address
increments after each byte. After the last Y address
(Y = 8), Y wraps around to 0 and X increments to address
the next column (see Fig.5).
After the very last address the address pointers wrap
around to address X = 0 and Y = 0 in both horizontal and
vertical addressing modes.
191
863
863
95
95
95
Y address
MGU688
Y address
MGU689
8
8
0
0
Objective specification
PCF8814