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Two bus mastering IDE controllers are included for support
of up to four ATA-compliant devices. A two-port Universal
Serial Bus (USB) provides high speed, Plug & Play expan-
sion for a variety of consumer peripheral devices such as a
keyboard, mouse, printer, and digital camera. If additional
functions are required like real-time clock, floppy disk, PS2
keyboard, and PS2 mouse, a SuperI/O such as the
National PC97317 can be easily connected to the
CS5530A.
Power Management
Intelligent system controller supports multiple power
management standards:
— Full ACPI and Legacy (APM) support
— Directly manages all GX-series processors’ power
states (including automatic Suspend modulation for
optimal performance/thermal balancing)
I/O traps and idle timers for peripheral power
management
Features
Up to eight GPIOs for system control:
— All eight are configurable as external wakeup events
General Features
Designed for use with National’s Geode GX-series
processors
352 PBGA (Plastic Ball Grid Array) package
3.3V or 5.0V PCI bus compatible
Dedicated inputs for keyboard and mouse wakeup
events
XpressAUDIO
Provides "back-end" hardware support via six buffered
PCI bus masters
5.0V tolerant on all inputs
3.3V core
PCI-to-ISA Bridge
AC97 codec interface:
— Specification Revision 1.3, 2.0, and 2.1 compliant
interface. Note that the codec (e.g., LM4548) must
have SRC (sample rate conversion) support
PCI 2.1 compliant
Display Subsystem Extensions
Supports PCI initiator-to-ISA and ISA master-to-PCI
Complements the GX-series processors’ graphics and
cycle translations
video capabilities:
PCI master for audio I/O and IDE controllers
— Three independent line buffers for accelerating video
data streams
Subtractive agent for unclaimed transactions
PCI-to-ISA interrupt mapper/translator
— Handles asynchronous video and graphics data
DataSheet4U.cosmtreams concurrently from the processor
— YUV to RGB conversion hardware
AT Compatibility
— Arbitrary X & Y interpolative scaling
— Color keying for graphics/video overlay
Two 8259A-equivalent interrupt controllers
VDACs / Display interface:
8254-equivalent timer
Two 8237-equivalent DMA controllers
— Three integrated DACs
— Gamma RAM:
– Provides gamma correction for graphics data
Boot ROM and keyboard chip select
Extended ROM to 16 MB
streams
– Provides brightness/contrast correction for video
data streams
Bus Mastering IDE Controllers
— Integrated DOT clock generator
— Digital RGB interface drives TFT panels or standard
Two controllers with support for up to four IDE devices
Independent timing for master and slave devices for
NTSC/PAL encoders
— Up to 1280x1024 @ 85 Hz
both channels
Universal Serial Bus
PCI bus master burst reads and writes
Ultra DMA/33 (ATA-4) support
Multiword DMA support
Two independent USB interfaces:
— Open Host Controller Interface (OpenHCI)
specification compliant
— Second generation proven core design
Programmed I/O (PIO) Modes 0-4 support
DataShee
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