FS451 datasheet(24/60 Pages) ETC2

24 / 60 page

FS450, FS451

PRELIMINARY PRODUCT DESCRIPTION

JUNE, 2000, VERSION 1.2

PRELIMINARY INFORM ATION

Notes:

VMI 656 Input Control: If the Video Module Interface (VMI) mode is specified, SAV and EAV commands are

inserted into the CCIR601 data stream to coordinate down stream data processing. The SAV and EAV Control

words have the following format:

YC Data

Preamble C

Preamble Y

Status Word C

Status Word Y

Table 3: SAV and EAV Control Words

F = 0 during field 1, F = 1 during field 2

P3 = V xor H

H = 0 for SAV, H = 1 for EAV

P2 = F xor H

V = 1 during vertical blanking

P1 = F xor V

P0 = F xor V xor H

UIM_MOD Mapping: The UIM_MOD (Universal Input Mux, UIM) bits select the mode for P0-P11 and E0-E5. The

intention is to support as many different 3D and GCC graphic controllers, CPU support chips and integrated

CPUs as possible (collectively referred to in this data sheet as "GCC"). The following table shows the mapping

in each mode for the digital RGB from the GCC to the appropriate port or extended port pin:

UIM_MOD

P/E Port

M888DL

M888DH

M888IL

M888IH

M565IL

M565IH

M555L

M555H

N666

N565

N555

P11

P10

Table 4: GCC Port Mapping (UIM_MOD)

1) All input bits are MSB justified

2) Shaded modes require zero padding at input port

3) For GCC to P/E Mapping, see Table 2

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