PC85133-1(2009) データシートの表示（PDF） - NXP Semiconductors.
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PC85133-1 Datasheet PDF : 41 Pages
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NXP Semiconductors
PCF85133
Universal LCD driver for low multiplex rates
Table 13. Bank-select command bit description[1]
See Section 7.10, Section 7.11, Section 7.12, Section 7.13 and Section 7.14.
Bit
Symbol Value
Description
Static
1:2 multiplex
7 to 2 -
111110 fixed value
1
I
Input bank selection: storage of arriving display data
0
RAM bit 0
RAM bits 0 and 1
1
RAM bit 2
RAM bits 2 and 3
0
O
Output bank selection: retrieval of LCD display data
0
RAM bit 0
RAM bits 0 and 1
1
RAM bit 2
RAM bits 2 and 3
[1] The bank-select command has no effect in 1:3 or 1:4 multiplex drive modes.
Table 14. Blink-select command bit description
See Section 7.15.
Bit
Symbol Value
Description
7 to 3 -
11110
fixed value
2
A
blink mode selection[1]
0
normal blinking
1
blinking by alternating display RAM banks
1 to 0 BF[1:0]
blink mode selection[2]
00
off
01
1
10
2
11
3
[1] Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected.
[2] For the blink frequencies see Table 7.
7.18 Display controller
The display controller executes the commands identified by the command decoder. It
contains the device’s status registers and co-ordinates their effects. The display controller
is also responsible for loading display data into the display RAM as required by the filling
order.
PCF85133_1
Product data sheet
Rev. 1 — 17 February 2009
© NXP B.V. 2009. All rights reserved.
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