pcf8832 NXP Semiconductors, pcf8832 Datasheet - Page 26

• Manufacturer Part Number: pcf8832
• Description: Pcf8832 Stn Rgb - 384 Output Column Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 12 Colour filter
8.1
8.1.1
The ‘no operation’ functionality is provided by the NOP
register. According to the interface protocol, first the
address 00H and then the register value 00H must be sent.
8.1.2
The chip has a hardware and a software reset. After
power-up, a hardware reset input (RES) must be applied.
The hardware and software resets give the same results.
After a reset the chip has the following state:
8.1.3
The software reset is applied following interface protocol:
1. Send a control byte with the software register
2. Send the register value (3FH).
8.1.6
Table 13 Display mode bits DIM and DON
2002 Aug 16
All column outputs set to V
RAM data undefined
Power-down mode
Command register set to default states (see Table 6).
STN RGB - 384 output column driver
CF0
address (3FH).
DIM
0
1
0
0
1
1
Function sets
NOP
R
S
D
OFTWARE RESET
ESET
ISPLAY ON
C0
R
B
DON
0
1
0
1
/
OFF
C1
G
G
SS
(display off)
C2
R
B
inverse video mode
normal mode
all pixels off
all pixels on
MODE
C3
R
B
C4
26
G
G
8.1.4
During Power-down (PD), all static currents are switched
off (no internal oscillator, no timing and no LCD segment
drive system) and all LCD column outputs are connected
internally to V
operational.
When PD = 1, the PCF8832 is in the Power-down mode:
8.1.5
When V = 0, horizontal addressing is selected and
the data is written into the DDRAM as shown in Fig.13.
When V = 1, vertical addressing is selected and the data is
written into the DDRAM as shown in Fig.14.
All column outputs are set to V
Interface is operational; commands can be executed
RAM contents are not cleared; RAM data can be written
Register settings remain unchanged.
C5
R
B
P
V
OWER
ERTICAL OR HORIZONTAL ADDRESSING
pixel value: (000) = V
pixel value: (111) = V
SS
. The I/O buffer and interface remain
-
DOWN
C6
R
B
C7
G
G
V
V
V
off(rms)
on(rms)
SS
pixel
Preliminary specification
off(rms)
off(rms)
(display off)
; (111) = V
; (000) = V
to
PCF8832
C383
on(rms)
on(rms)
B
R