Specifications

Color LCD Controller (CLCDC)
5-4 Copyright © 2004, 2006 ARM Limited. All rights reserved. ARM DDI 0287B
5.2 Functional description
Simplified block diagrams of the CLCDC and the external interface are shown in
Figure 5-1 and Figure 5-2 on page 5-5.
Figure 5-1 CLCDC internal organization
AHB bus
matrix
AHB
slave
interface
Control and
status
register
AHB
master
interface
Upper
panel
DMA
FIFO
Input
FIFO
control
Lower
panel
DMA
FIFO
Pixel
serializer
Palette
(128x32)
Grayscaler
Upper
panel
formatter
Lower
panel
formatter
Upper
panel
output
FIFO
Lower
panel
output
FIFO
Timing
controller
LCD panel control
STN/TFT
data
select
LCD panel data
FIFO underflow
Interrupt
generation
AHB error
Interrupt to VIC
Hardware
Cursor
CLCDCLKEXT
Upper STN
Lower STN
CLCD[23:0]
CLPOWER, CLLP,
CLCP, CLFP, CLAC,
CLLE