PCF8562TT Datasheet, PDF (22/44 Pages) NXP Semiconductors – Universal LCD driver for low multiplex rates

NXP Semiconductors
PCF8562
Universal LCD driver for low multiplex rates
7.12 Command decoder
The command decoder identifies command bytes that arrive on the I²C-bus. The
commands available to the PCF8562 are defined in Table 9.
Table 9. Definition of PCF8562 commands
Command
Operation code
Bit
7
6
5
4
3
mode-set
C1
0
-^[1]
E
load-data-pointer
C
0
0
P[4:0]
device-select
C
1
1
0
0
bank-select
C
1
1
1
1
blink-select
C
1
1
1
0
[1] Not used.
2
1
0
B M[1:0]
A[2:0]
0
I
O
AB BF[1:0]
Reference
Table 11
Table 12
Table 13
Table 14
Table 15
All available commands carry a continuation bit C in their most significant bit position as
shown in Figure 18. When this bit is set, it indicates that the next byte of the transfer to
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 10).
Table 10. C bit description
Bit
Symbol Value
7
C
0
1
Description
continue bit
last control byte in the transfer; next byte will be regarded
as display data
control bytes continue; next byte will be a command too
PCF8562
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 16 June 2011
© NXP B.V. 2011. All rights reserved.
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