PCF8811MU/2DA/1 PHILIPS [NXP Semiconductors], PCF8811MU/2DA/1 Datasheet - Page 34

• Manufacturer Part Number: PCF8811MU/2DA/1
• Description: 80 x 128 pixels matrix LCD driver
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
13.6
Y[3:0] defines the Y address of the display RAM.
Table 18 X/Y address range
When the icon row is enabled this icon row (ROW 79) will
always be in bank 9 independent of the mux rate which is
programmed.
13.7
The X address points to the columns. The range of X is
0 to 127 (7FH).
2004 May 17
Y3 Y2 Y1 Y0
0
0
0
0
0
0
0
0
1
1
80
Set Y address of RAM
0
0
0
0
1
1
1
1
0
0
Set X address of RAM
128 pixels matrix LCD driver
0
0
1
1
0
0
1
1
0
0
0
1
0
1
0
1
0
1
0
1
bank 0 (display RAM)
bank 1 (display RAM)
bank 2 (display RAM)
bank 3 (display RAM)
bank 4 (display RAM)
bank 5 (display RAM)
bank 6 (display RAM)
bank 7 (display RAM)
bank 8 (display RAM)
bank 9 (display RAM)
CONTENT
ALLOWED
X RANGE
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
0 to 127
34
13.8
L[6:0] is used to select the display line address of the
display RAM to be displayed on the initial row, ROW 0.
The selection of L is limited to steps of 8. When the icon
row is selected, the selection of L is limited to steps of 16.
When a partial mode is selected, the selection of L is also
limited in steps. In addition, the selection of L = 72 is not
allowed when the icon row is enabled or disabled.
The initial row can, in turn, be set by C[6:0]. ROW 0 cannot
be set to the icon row ROW 79 when enabled.
An example of the mapping from the RAM content to the
display is illustrated in Fig.30. The content of the RAM is
not modified. This feature allows, for instance, screen
scrolling without rewriting the RAM.
Set display start line
Product specification
PCF8811