UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
764 of 1269
NXP Semiconductors
UM10503
Chapter 27: LPC43xx LCD
27.4.1 Programmable parameters
The following key display and controller parameters can be programmed:
•
Horizontal front and back porch
•
Horizontal synchronization pulse width
•
Number of pixels per line
•
Vertical front and back porch
•
Vertical synchronization pulse width
•
Number of lines per panel
•
Number of pixel clocks per line
•
Hardware cursor control.
•
Signal polarity, active HIGH or LOW
•
AC panel bias
•
Panel clock frequency
•
Bits-per-pixel
Fig 78. LCD controller block diagram
AHB
slave
interface
AHB
master
interface
A
H
B Bu
s
Panel clock
generator
Timing
controller
LCD panel
clock
LCD control
signals
Upper
panel
DMA
FIFO
Pixel
serializer
Lower
panel
formatter
RAM
palette
(128x32)
Input
FIFO
control
Lower
panel
DMA
FIFO
Upper
panel
output
FIFO
Lower
panel
output
FIFO
Upper
panel
formatter
Upper
STN
Lower
STN
Hardware
Cursor
Gray
scaler
STN/TFT
data
select
LCD panel
data
Interrupt
generation
Interrupt
FIFO underflow
AHB error
LCDCLKIN