pcf85162 NXP Semiconductors, pcf85162 Datasheet - Page 22

• Manufacturer Part Number: pcf85162
• Description: Universal Lcd Driver For Low Multiplex Rates
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCF85162_1
Product data sheet
7.17 Command decoder
The command decoder identifies command bytes that arrive on the I
The commands available to the PCF85162 are defined in
Table 8.
Bit position labeled as - is not used.
All available commands carry a continuation bit C in their most significant bit position as
shown in
arrive will also represent a command. If this bit is reset, it indicates that the command byte
is the last in the transfer. Further bytes will be regarded as display data (see
Table 9.
Table 10.
[1]
Command
Bit
mode-set
load-data-pointer
device-select
bank-select
blink-select
Bit
7
Bit
7
6 to 5
4
3
2
1 to 0
The possibility to disable the display allows implementation of blinking under external control.
Figure
Symbol
C
Symbol
C
-
-
E
B
M[1:0]
Definition of PCF85162 commands
C bit description
Mode-set command bit description
16. When this bit is set, it indicates that the next byte of the transfer to
Value
0
1
Value
0, 1
10
-
0
1
0
1
01
10
11
00
Rev. 01 — 7 January 2010
Operation Code
7
C
C
C
C
C
6
1
0
1
1
1
Description
see
fixed value
unused
display status
LCD bias configuration
LCD drive mode selection
Description
continue bit
1:2 multiplex; BP0, BP1
1:4 multiplex; BP0, BP1, BP2, BP3
disabled (blank)
enabled
1
1
static; BP0
1:3 multiplex; BP0, BP1, BP2
5
0
0
1
1
1
⁄
⁄
last control byte in the transfer; next byte will be regarded
as display data
control bytes continue; next byte will be a command too
3
2
Table 9
bias
bias
Universal LCD driver for low multiplex rates
4
-
P4
0
1
1
3
E
P3
0
1
0
[1]
B
P2
2
A2
0
A
Table
1
M1
P1
A1
I
BF1
8.
PCF85162
2
0
M0
P0
A0
O
BF0
C-bus.
© NXP B.V. 2010. All rights reserved.
Reference
Table 10
Table 11
Table 12
Table 13
Table 14
Table
9).
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