PCF85134HL-1 NXP [NXP Semiconductors], PCF85134HL-1 Datasheet - Page 25

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

NXP Semiconductors
PCF85134_1
Product data sheet
8.4 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 of the PCF85134 and coordinates their effects. The controller
also loads 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
11110
0
1
00
01
10
11
Rev. 01 — 17 December 2009
Value
111110
0
1
0
1
7.11,
Table
Section
Description
fixed value
blink mode selection
blink frequency selection
Description
Static
fixed value
input bank selection: storage of arriving display data
output bank selection: retrieval of LCD display data
7.
normal blinking
blinking by alternating display RAM banks
off
1
2
3
RAM row 0
RAM row 2
RAM row 0
RAM row 2
7.12,
Section 7.13
Universal LCD driver for low multiplex rates
[1]
and
Section
1:2 multiplex
RAM rows 0 and 1
RAM rows 2 and 3
RAM rows 0 and 1
RAM rows 2 and 3
7.14.
PCF85134
© NXP B.V. 2009. All rights reserved.
[1]
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