Philips Semiconductors
(67 + 1) × 102 pixels matrix LCD driver
Product specification
PCF8813
7.12 Mirror Y
The MY bit allows vertical mirroring. When MY = 1, the Y address space is mirrored resulting in an upside-down display.
The address Y = 0 is then located at the bottom of the display (see Fig.11). When MY = 0, the mirroring is disabled and
the address Y = 0 is located at top of the display (see Fig.12). A change in the state of MY has an immediate effect on
the display and the effect of MY is visible immediately the bit is modified. This feature makes it possible to mount the
device at the top or bottom of the display.
handbook, full pagewidth
8
0
10
0
X address
101
Y address
MGU628
Fig.11 Display data RAM format addressing; MY = 1.
handbook, full pagewidth
0
2004 Mar 05
8
10
0
X address
101
Y address
MGU627
Fig.12 Display data RAM format addressing; MY = 0.
14