OM6290 NXP Semiconductors, OM6290 Datasheet - Page 20
![DEMO BOARD LCD GRAPHIC DRIVER](/photos/9/4/90479/om6290_sml.jpg)
OM6290
Manufacturer Part Number
OM6290
Description
DEMO BOARD LCD GRAPHIC DRIVER
Manufacturer
NXP Semiconductors
Datasheets
1.PCF8576T1118.pdf
(44 pages)
2.OM6290.pdf
(30 pages)
3.OM6290.pdf
(51 pages)
4.OM6290.pdf
(83 pages)
Specifications of OM6290
Main Purpose
Displays, LCD Controller
Embedded
Yes, MCU, 16/32-Bit
Utilized Ic / Part
PCF2119, PCF8531, PCF8576
Primary Attributes
Character, Graphic and Segment LCD Drivers
Secondary Attributes
JTAG, I²C, UART & USB Interfaces
Description/function
Demo Board
Interface Type
USB, I2C, JTAG, UART
Data Bus Width
4 bit, 8 bit, 16 bit
Operating Voltage
1.8 V to 5.5 V
For Use With/related Products
PCF8576DT, PCF2119S, PCF8531
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
568-4703
NXP Semiconductors
9. Instructions
PCF8531
Product data sheet
9.1 Reset
Only two PCF8531 registers, the instruction register and the data register can be directly
controlled by the MPU. Before internal operation, control information is stored temporarily
in these registers to allow interfacing to various types of MPUs which operate at different
speeds or to allow interfacing to peripheral control ICs. The PCF8531 operation is
controlled by the instructions given in
Instructions are of four types:
In normal mode instructions which perform data transfer to/from the internal RAM are
used most frequently. Automatic incrementing by 1 of internal RAM addresses after each
data write reduces the MPU program load.
After reset or internal Power-On Reset (POR) (depending on the application), the LCD
driver is set to the following state:
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Those that define PCF8531 functions e.g. display configuration, etc.
Those that set internal RAM addresses
Those that perform data transfer to/from the internal RAM
Others
Power-down mode (PD = 1)
Horizontal addressing (V = 0)
Display blank (D = 0; E = 0), no icon mode (IM = 0)
Address counter X[6:0] = 0; Y[2:0] = 0
Bias system BS[2:0] = 0
Multiplex rate M[1:0] = 0 (multiplex rate 1:17)
Temperature control mode TC[2:0] = 0
HV-gen control, HVE = 0 the high voltage (HV) generator is switched off, PRS = 0 and
S[1:0] = 0
V
RAM data is undefined
Command page definition H[1:0] = 0
LCD
= 0 V
All information provided in this document is subject to legal disclaimers.
Rev. 05 — 10 August 2010
Table
11.
34 x 128 pixel matrix driver
PCF8531
© NXP B.V. 2010. All rights reserved.
20 of 51