PCA85133 NXP [NXP Semiconductors], PCA85133 Datasheet - Page 24

• Manufacturer Part Number: PCA85133
• Description: Universal LCD driver for low multiplex rates
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
PCA85133_1
Product data sheet
7.18 Display controller
Table 13.
See
[1]
Table 14.
See
[1]
[2]
The display controller executes the commands identified by the command decoder. It
contains the status registers and coordinates their effects. The display controller also
loads the display data into the display RAM as required by the storage order.
Bit
7 to 2
1
0
Bit
7 to 3
2
1 to 0
The bank-select command has no effect in 1:3 or 1:4 multiplex drive modes.
Normal blinking can only be selected in multiplex drive mode 1:3 or 1:4.
For the blink frequencies, see
Section
Section
Symbol
-
I
O
Symbol
-
A
BF[1:0]
Bank-select command bit description
Blink-select command bit description
7.10,
7.15.
Section
Value
111110
0
1
0
1
Value
11110
0
1
00
01
10
11
Rev. 1 — 23 October 2009
7.11,
Table
Section
Description
Static
fixed value
input bank selection: storage of arriving display data
output bank selection: retrieval of LCD display data
Description
fixed value
blink mode selection
blink frequency selection
7.
RAM bit 0
RAM bit 2
RAM bit 0
RAM bit 2
normal blinking
blinking by alternating display RAM banks
off
1
2
3
7.12,
Section 7.13
Universal LCD driver for low multiplex rates
[1]
[1]
and
[2]
Section
1:2 multiplex
7.14.
RAM bits 0 and 1
RAM bits 2 and 3
RAM bits 0 and 1
RAM bits 2 and 3
PCA85133
© NXP B.V. 2009. All rights reserved.
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