Revision 3.2

13

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Figure 3-2. Connection Method Using Input Expansion Buffer

Table 3-1. Mode Selection Bits

Bit

Description

Index 02h

Control Register (R/W)

Reset Value = 00h

1

16/24-Bit DSTN Select: UD/LD[11:0] formatted for: 0 = 16-bit (640x480 and 800x600), 1 = 24-bit (1024x768).

For this bit to be applicable, bit 0 must = 0. Also see Section 3.1 “Mode Selection” on page 12.

0

Pass-through: UD/LD[11:0] are formatted for: 0 = DSTN, 1 = TFT Pass-through.

A setting of 1 overrides bit 1. See Section 3.1 “Mode Selection” on page 12.

IOR#

SD[15:0]

FP_ENA_VDD

FP_DISP_ENA_OUT

FP_CLK

FP_HSYNC

FP_VSYNC

FP_DATA[5:0]

FP_DATA[11:6]

FP_DATA[17:12]

SCLK

SDIN

SCS

SDO

ENA_LCDIN

ENA_VDDIN

ENA_DISP

DOTCLK

FP_HSYNC

FP_VSYNC

BLUE[5:0]

GREEN[5:0]

RED[5:0]

VCC3

Input Expansion Buffer

GPCS#

GPIOx

GPIOx

GPIOx

ISA Bus

Geode™

CS5530 I/O

Companion

Geode™

CS9210

Graphics

Companion