AMD Geode™ LX Processors Data Book 13
Overview 33234H
Display Controller
Hardware frame buffer compression improves Unified
Memory Architecture (UMA) memory efficiency
CRT resolutions supported:
— Supports up to 1920x1440x32 bpp at 85 Hz
— Supports up to 1600x1200x32 bpp at 100 Hz
Supports up to 1600x1200x32 bpp at 60 Hz for TFT
Standard Definition (SD) resolution for Video Output
Port (VOP):
— 720x482 at 59.94 Hz interlaced for NTSC
— 768x576 at 50 Hz interlaced for PAL
High Definition (HD) resolution for Video Output Port
(VOP):
— Up to 1920x1080 at 30 Hz interlaced (1080i HD)
(74.25 MHz)
— Up to 1280x720 at 60 Hz progressive (720p HD)
(74.25 MHz)
Supports down to 7.652 MHz Dot Clock (320x240
QVGA)
Hardware VGA
Hardware supported 48x64 32-bit cursor with alpha
blending
Video Processor
Supports video scaling, mixing and VOP
Hardware video up/down scalar
Graphics/video alpha blending and color key muxing
Digital VOP (SD and HD) or TFT outputs
Legacy RGB mode
VOP supports SD and HD 480p, 480i, 720p, and 1080i
VESA 1.1, 2.0 and BT.601 24-bit (out only), BT.656
compliant
Integrated Analog CRT DAC, System Clock PLLs and
Dot Clock PLL
Integrated Dot Clock PLL with up to 350 MHz clock
Integrated 3x8-bit DAC with up to 350 MHz sampling
Integrated x86 core PLL
Memory PLL
GeodeLink™ PCI Bridge
PCI 2.2 compliant
3.3V signaling and 3.3V I/Os
33 to 66 MHz operation
32-bit interface
Supports virtual PCI headers for GeodeLink devices
Video Input Port (VIP)
VESA 1.1 and 2.0 compliant, 8 or 16-bit
Video Blanking Interval (VBI) support
8 or 16-bit 80 MHz SD or HD capable
Security Block
Serial EEPROM interface for 2K bit unique ID and AES
(Advanced Encryption Standard) hidden key storage
(EEPROM optional inside package)
Electronic Code Book (ECB) or Cipher Block Chaining
(CBC)128-bit AES hardware support
True random number generator (TRNG)