PCF8833 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
'PCF8833' PDF : 112 Pages View PDF
Philips Semiconductors
STN RGB - 132 × 132 × 3 driver
Objective speciï¬cation
PCF8833
6.2.10 PARTIAL MODE ON
Partial mode on (PTLON) turns on the partial Display
mode. Only one partial display size can be chosen. Normal
mode, Scroll mode, DALO and DAL are exited with this
command. When sending DAL after PTLON, only the
pixels of partial area are driven on.
A normal Display mode command is used to exit the Partial
mode. How the partial display area can be programmed is
given in Section 6.2.23.
A sequence showing how the command PTLON can be
used is illustrated in Fig.5.
Table 19 Partial mode on register bits
D/C
7
6
5
4
3
2
1
0
DEFAULT
0
0
0
0
1
0
0
1
0
12H
handbook, full pagewidth
Initial state (1)
booster on
Sleep_OUT
display on
normal display
send PTLAR
partial area def
send DISPOFF
display off
send PTLON
partial mode on
optional
send PTLAR
partial area def
exit partial mode
send NORON
normal display
send SEP
scroll mode
wait until
display supply
voltage is settled
send DISPON
display on
optional
MGU914
(1) If the initial state is Sleep_IN, the same sequence is valid, but Sleep_OUT has to be sent to see the effect on the display (after display voltage has
settled).
When sending DAL after PTLON, only the pixels of partial area are driven on. When sending INVON, in Partial mode only the pixels of partial area are
inverted. INVON is over-ruled by DAL and DALO. Pixels outside partial area always stay off.
Fig.5 Sequence how PTLON can be used.
2003 Feb 14
22
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