PCF85134HL-1 NXP [NXP Semiconductors], PCF85134HL-1 Datasheet - Page 24

• Manufacturer Part Number: PCF85134HL-1
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCF85134_1
Product data sheet
8.3 Command decoder
The acknowledgement after each byte is made only by the (A0, A1, and A2) addressed
PCF85134. After the last display byte, the I
Alternatively a START may be issued to RESTART I
The command decoder identifies command bytes that arrive on the I
five commands:
Table 9.
Table 10.
[1]
Table 11.
See
Table 12.
See
Command
Bit
Mode-set
Load-data-pointer
Device-select
Bank-select
Blink-select
Bit
7 to 4
3
2
1 to 0
Bit
7
6 to 0
Bit
7 to 3
2 to 0
The possibility to disable the display allows implementation of blinking under external control.
Section
Section
Symbol
-
E
B
M[1:0]
Symbol
-
P[6:0]
Symbol
-
A[2:0]
Definition of commands
Mode-set command bit description
Load-data-pointer command bit description
Device-select command bit description
7.11.
7.12.
Value
1100
0
1
0
1
01
10
11
00
Value
0
0000000 to
0111011
Value
11100
000 to 111
Rev. 01 — 17 December 2009
Operation code
7
1
0
1
1
1
6
1
P[6:0]
1
1
1
Description
fixed value
display status
LCD bias configuration
LCD drive mode selection
Description
fixed value
7-bit binary value of 0 to 59
Description
fixed value
3-bit binary value of 0 to 7
disabled (blank)
enable
1
1
static; 1 backplane
1:2 multiplex; 2 backplanes
1:3 multiplex; 3 backplanes
1:4 multiplex; 4 backplanes
3
2
5
0
1
1
1
bias
bias
Universal LCD driver for low multiplex rates
2
C-bus master issues a STOP condition (P).
4
0
0
1
1
[1]
3
E
0
1
0
2
C-bus access.
2
B
A[2:0]
0
A
1
M[1:0]
I
BF[1:0]
PCF85134
2
C-bus. There are
© NXP B.V. 2009. All rights reserved.
0
O
Reference
Table 10
Table 11
Table 12
Table 13
Table 14
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