PCF85321 NXP [NXP Semiconductors], PCF85321 Datasheet - Page 22
PCF85321
Manufacturer Part Number
PCF85321
Description
Universal LCD driver for low multiplex rates
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF85321.pdf
(44 pages)
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NXP Semiconductors
PCF8532_1
Product data sheet
Fig 15. I
EXAMPLES
a) transmit two bytes of RAM data
b) transmit two command bytes
c) transmit one command byte and two RAM date bytes
S 0 1 1 1 0
S 0 1 1 1 0
S 0 1 1 1 0
S 0 1 1 1 0
slave address
2
C-bus protocol
7.17 Command decoder
0
0
0
0
R/W = 0
S
A
0
S
A
0
S
A
0
S
A
0
0
0
0
0
A
A
A
A
Table 7.
The command decoder identifies command bytes that arrive on the I
commands available to the PCF8532 are defined in
Bit
7
6
5 to 0
C
O
Fig 16. Format of control byte
0 1
1 0
1 0
R
S
control byte
Symbol
CO
RS
-
Load-data-pointer command bit description
A
A
A
A
M
S
B
RAM/command byte
COMMAND
COMMAND
Value
0
1
0
1
RAM DATA
Rev. 1 — 10 February 2009
MSB
L
S
B
CO
7
A
A
A
P
0 0
0 1
Description
continue bit
register selection
not relevant
RS
6
last control byte
control bytes continue
command register
data register
RAM DATA
5
Universal LCD driver for low multiplex rates
4
not relevant
3
A
A
A
P
2
Table
COMMAND
RAM DATA
1
mgl753
0
8.
LSB
A
A
P
2
C-bus. The
RAM DATA
PCF8532
© NXP B.V. 2009. All rights reserved.
mgl752
A
P
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