CL-GD54XX中文资料凌云逻辑数据手册PDF规格书

FEATURES

• Pin- and software-compatible VGA graphics

accelerator family

• Enhanced GUI acceleration

- 64-bit Bit Block Transfer (BitBLT) engine (CL-GD5434)

- 32-bit BitBLT engine (CL-GD5430)

• 32-bit direct-connect CPU interface

- PCITM bus (v2.0 compliant) with burst-cycle support

- VESA® VL-BuS™ (v2.0 with 50 MHz)

- ISA bus (12.5 MHz) (CL-GD5434 only)

- Zero-wait-state write buffer for CPUs up to 33 MHz

• 64-bit DRAM display memory interface

- 1-,2-, and 4-Mbyte display memory support

(CL-GD5434)

- 1/2-, 1-, and 2-Mbyte display memory support

(CL-GD5430)

• Resolutions to 1280 x 1024

- Up to 1024 x 768 x 64K colors, non-interlaced

- Up to 800 x 600 x 16M colors, non-interlaced

- Up to 1280 x 1024 x 64K colors, interlaced

• Integrated 24-bit DAC

• 'Green PC' power-saving features:

- VESA® support for Display Power-Management Signalling

(DPMS)

- Internal DAC with power-down mode

- Low-frequency DRAM refresh

- Static monitor sync signals

• 100 hardware- and BIOS-compatible with IBM®

VGA display standard