pca8576d NXP Semiconductors, pca8576d Datasheet - Page 23

• Manufacturer Part Number: pca8576d
• Description: Automotive 40 X 4 Lcd Segment Driver For Low Multiplex Rates Up To 1 4
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCA8576D
Product data sheet
7.17 Command decoder
The command decoder identifies command bytes that arrive on the I
commands available to the PCA8576D are defined in
Table 8.
[1]
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]
[2]
Command
Bit
mode-set
load-data-pointer
device-select
bank-select
blink-select
Bit
7
Bit
6 to 5
4
3
2
7
1 to 0
Not used.
The possibility to disable the display allows implementation of blinking under external control.
Not applicable for static drive mode.
Figure
Symbol
C
Symbol
C
-
-
E
B
M[1:0]
Definition of PCA8576D commands
C bit description
Mode-set command bit description
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17. When this bit is set, it indicates that the next byte of the transfer to
0
1
-
Value
Value
0, 1
10
0
1
0
1
01
10
11
00
Operation Code
7
C
C
C
C
C
Automotive 40 x 4 LCD segment driver for low multiplex rates
Rev. 1 — 4 April 2011
6
1
0
1
1
1
Description
see
fixed value
unused
display status
LCD bias configuration
LCD drive mode selection
Description
continue bit
disabled (blank)
enabled
1
1
static; BP0
1:2 multiplex; BP0, BP1
1:3 multiplex; BP0, BP1, BP2
1:4 multiplex; BP0, BP1, BP2, BP3
5
0
P[5:0]
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
4
[1]
0
1
1
3
E
0
1
0
[1]
Table
2
B
A[2:0]
0
AB
[2]
8.
1
M[1:0]
I
BF[1:0]
PCA8576D
2
0
O
C-bus. The
© NXP B.V. 2011. All rights reserved.
Reference
Table 10
Table 11
Table 12
Table 13
Table 14
Table
9).
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