Datasheet

VIPER Embedded Linux Development Kit Quickstart Arcom Embedded Linux (AEL)
Parameter Description Default
pixclock The pixel clock, expressed in picoseconds
(10
-12
s). This value is used in conjunction with
the current memory clock rate to calculate
LCCR3[PCD].
pixclock:157500
left, right,
hsynclen,
upper,
lower and
vsynclen
The timing parameters. All parameters are
given as a number of pixel clock ticks. The
upper and lower margins should be 0 for
passive (STN) displays.
The values correspond to LCCR as follows:
•
•
•
•
•
•
left corresponds to LCCR1[BLW] + 1.
right corresponds to LCCR1[ELW] + 1.
hsynclen corresponds to LCCR1[HSW] + 1.
upper corresponds to LCCR2[BFW].
lower corresponds to LCCR2[EFR].
vsynclen corresponds to LCCR2[VSW] + 1.
Several of these values are modified by + 1
because the hardware expects the desired value
– 1 to be programmed. The values given to this
parameter therefore correspond to the desired value
rather than the value programmed into the
hardware.
left:7,
right:13,
hsynclen:63,
upper:1,
lower:1,
vsynclen:20.
color or
mono
Configures the LCD controller for color or
monochrome panels. These parameters
correspond to the LCCR0[CMS] register.
color
active or
passive
Configures the LCD controller for active (TFT)
or passive (STN) displays. These parameters
correspond to the LCCR0[PAS] register.
active
single or
dual
In passive mode configures the LCD controller
for either single or dual panel displays. These
parameters correspond to the LCCR0[SDS]
register.
N/A
4pix or
8pix
In monochrome passive mode configures the
LCD controller for either 4 or 8 pixel mode.
These parameters correspond to the
LCCR0[DPD] register.
N/A
Continued…
© 2005 Arcom Issue E 26