CS5530A datasheet(44/259 Pages) AMD

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AMD Geode™ CS5530A Companion Device Data Book

Signal Definitions

Revision 1.1

FP_DISP_

ENA_OUT

Flat Panel Display Enable Output

This is the display enable for an attached active matrix TFT flat panel. This

signal qualifies active pixel data on the flat panel interface.

ISA Master Mode: No Function

In the ISA Master mode of operation, the CS5530A can not support TFT flat

panels or TV controllers.

FP_ENA_VDD

Flat Panel VDD Enable

This is the enable signal for the VDD supply to an attached flat panel. It is

under the control of power sequence control logic. A transition on bit 6 of the

Display Configuration Register (F4BAR+Memory Offset 04h) initiates a

power-up/down sequence.

ISA Master Mode: No Function

In the ISA Master mode of operation, the CS5530A can not support TFT flat

panels or TV controllers.

FP_ENA_BKL

Flat Panel Backlight Enable Output

This is the enable signal for the backlight power supply to an attached flat

panel. It is under control of the power sequence control logic.

ISA Master Mode: No Function

In the ISA Master mode of operation, the CS5530A can not support TFT flat

panels or TV controllers.

Display MPEG

VID_DATA[7:0]

C12,

B12,

A12,

D11,

C11,

B13,

C13,

A11

Video Data Port

This is the input data for a video (MPEG) or graphics overlay in its native

form. For video overlay, this data is in an interleaved YUV 4:2:2 format. For

graphics overlay, the data is in RGB 5:6:5 format. This port operates at the

VID_CLK rate.

VID_CLK

Video Clock

This is the clock for the video port. This clock is completely asynchronous to

the input pixel clock rate.

VID_VAL

Video Valid

This signal indicates that valid video data is being presented on the

VID_DATA input port. If the VID_RDY signal is also asserted, the data will

advance.

VID_RDY

B10

Video Ready

This signal indicates that the CS5530A is ready to receive the next piece of

video data on the VID_DATA port. If the VID_VAL signal is also asserted, the

data will advance.

3.2.11

Display Interface (Continued)

Signal Name

No.

Type

Description

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