pcf8534ah-1 NXP Semiconductors, pcf8534ah-1 Datasheet - Page 21

• Manufacturer Part Number: pcf8534ah-1
• Description: Universal Lcd Driver For Low Multiplex Rates
• Manufacturer: NXP Semiconductors

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Co = 0; last control byte.
Co = 1; control bytes continue.
RS = 0; data is a command byte
RS = 1; data is a display byte
EXAMPLES
a) transmit two bytes of RAM data
b) transmit two command bytes
c) transmit one command byte and two RAM 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
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
Co RS
0 1
1 0
1 0
control byte
A
A
A
A
M
S
B
RAM/command byte
MSB
RAM DATA
COMMAND
COMMAND
Co RS
Fig.15 Format of control byte.
Fig.14 I
2
L
S
B
C-bus protocol.
P
A
A
A
UNUSED
0 0
0 1
RAM DATA
MGL753
LSB
A
A
A
P
COMMAND
RAM DATA
A
A
P
RAM DATA
MGL752
A
P