Signal Definitions (Continued)
2.2.4 Video Interface Signals (Continued)
BGA
SPGA
Signal Name
Pin No
Pin No
Type
Description
CRT_VSYNC
AA3
AH2
O
CRT Vertical Sync
CRT Vertical Sync establishes the screen refresh rate and verti-
cal retrace interval for an attached CRT. The polarity is program-
mable and depends on the display mode.
FP_HSYNC
L2
R4
O
Flat Panel Horizontal Sync
Flat Panel Horizontal Sync establishes the line rate and horizon-
tal retrace interval for a TFT display. Polarity is programmable
and depends on the display mode.
This signal is an input to the CS5530. The CS5530 re-drives this
signal to the flat panel.
If no flat panel is used in the system, this signal does not need to
be connected.
FP_VSYNC
J1
P2
O
Flat Panel Vertical Sync
Flat Panel Vertical Sync establishes the screen refresh rate and
vertical retrace interval for a TFT display. Polarity is programma-
ble and depends on the display mode.
This signal is an input to the CS5530. The CS5530 re-drives this
signal to the flat panel.
If no flat panel is used in the system, this signal does not need to
be connected.
ENA_DISP
VID_RDY
AD5
AM6
O
Display Enable
Display Enable indicates the active display portion of a scan line
to the CS5530.
In a CS5530-based system, this signal is required to be con-
nected even if there is no TFT panel in the system.
AD1
M2
AK2
S3
I
Video Ready
This input signal indicates that the video FIFO in the CS5530 is
ready to receive more data.
VID_VAL
O
O
Video Valid
VID_VAL qualifies valid video data to the CS5530.
Video Data Bus
VID_DATA[7:0]
Refer
to
Refer
toTable
2-5
When the Video Port is enabled, this bus drives Video (Y-U-V)
data synchronous to the VID_CLK output.
PIXEL[17:0]
Refer
Refer
O
Graphics Pixel Data Bus
toTable toTable
2-3 2-5
This bus drives graphics pixel data synchronous to the PCLK
output.
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