pcf8833 NXP Semiconductors, pcf8833 Datasheet - Page 27
pcf8833
Manufacturer Part Number
pcf8833
Description
Stn Rgb - 132 X 132 X 3 Driver
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8833.pdf
(112 pages)
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Philips Semiconductors
6.2.19
The display data RAM parameters xs and xe define the column address range of the display data RAM for writing data.
Parameters xs and xe are defined between 0 and 131 (83H), and xs must be smaller then xe.
Table 29 Column address set register bits
6.2.20
The display data RAM parameters ys[7:0] and ye[7:0] define the page (row) address range of the display data RAM for
writing data. Parameters ys and ye are defined between 0 and 131 (83H), and ys must be smaller then ye.
Table 30 Page address set register bits
6.2.21
Data written to the display memory (RAM) is validated by the Memory write (RAMWR) command. Entering this command
always returns the page address and column address to the start addresses xs[7:0] and ys[7:0] respectively. Content of
the display data RAM is written by the data entered following this command, with the page and/or column address
automatically incremented. The data Write mode turned on by this command can be automatically cancelled by entering
another command.
After a power-up the display RAM content is undefined. Neither a hardware reset nor a software reset changes the data
stored in display RAM. Sending display data must stop 160 ns before issuing a hardware reset, otherwise the last word
written to the display RAM may be corrupted.
Table 31 Memory write register bits
2003 Feb 14
STN RGB - 132
D/C
D/C
D/C
0
1
1
0
1
1
0
1
C
P
M
AGE ADDRESS SET
OLUMN ADDRESS SET
EMORY WRITE
xe[7]
ye[7]
xs[7]
ys[7]
D7
7
0
7
0
7
0
xe[6]
ye[6]
xs[6]
ys[6]
D6
6
0
6
0
6
0
132
xe[5]
ye[5]
xs[5]
ys[5]
3 driver
D5
5
1
5
1
5
1
xe[4]
ye[4]
xs[4]
ys[4]
D4
4
0
4
1
4
0
27
xe[3]
ye[3]
xs[3]
ys[3]
D3
3
1
3
1
3
1
xe[2]
ye[2]
xs[3]
ys[3]
D2
2
0
2
0
2
1
xe[1]
ye[1]
xs[3]
ys[3]
D1
1
1
1
1
1
0
Objective specification
xe[0]
ye[0]
xs[0]
ys[0]
D0
0
0
0
1
0
1
PCF8833
DEFAULT
DEFAULT
DEFAULT
2AH
2BH
2CH
02H
81H
02H
81H
XX
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