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Description : N-TYPE LASER DIODE DRIVER

FEATURES
✦ Peak value controlled laser diode driver for operation from CW
   up to 155 MHz
✦ Spike-free switching of laser currents of up to 300 mA
✦ Setting of laser power (APC) via external resistor
✦ Optional current control (ACC)
✦ Laser current limitation
✦ LVDS/TTL switching input with TTL monitor output
✦ Low current consumption sleep-mode < 50 µA
✦ Safety shutdown with overtemperature
✦ Error signal output with overtemperature, undervoltage and
   overcurrent
✦ All current LD types can be used (N/P/M configurations)
✦ Blue laser diodes supported
✦ Fast soft-start
✦ Strong suppression of transients with small external capacitors

APPLICATIONS
✦ Pulsed and CW laser diode
   modules
✦ Laser diode pointers
✦ Laser levels
✦ Bar-code readers
✦ Distance measurement
✦ Blue laser diodes

Description : ACPI Regulator/controller for Dual Channel DDR Memory Systems

General Description
The RT9644/A is a complete ACPI compliant power solution for DDR and DDR2 memory system with up to 4 DIMMs dual channel systems. This RT9644 includes one synchronous buck controller for DDR/DDR2 VDDQ, one DDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, three LDO controllers for VGMCH (cascode), and GMCH/CPU termination VTT_GMCH/CPU. The RT9644A includes one synchronous buck controller for DDR/DDR2 VDDQ, one PWM controller for VGMCH (with external Mosfet driver), oneDDR/DDR2 bus terminator VTT (equal to VDDQ/2) regulator with source and sinking ability, and two LDO controllers for VTT_GMCH/CPU and VDAC.

Features
● RT9644 Includes Three LDO controllers, one LDO Regulator and one PWM controller
    }oneDDR/DDR2 VDDQ with Synchronous Buck PWM
    }one DDR/DDR2 Bus Terminator VTT Regulator Source/Sink 3A
    }Two Cascode LDO controllers forGMCH Core
    }one LDO controller forGMCH/CPU Bus Terminator VTT_GMCH/CPU
● RT9644AIncludes Two LDO controllers, one LDO Regulator and Two PWM controllers
    }oneDDR/DDR2 VDDQ with Synchronous Buck PWM
    }one VGMCH with External Richtek Mosfet Driver
    }one DDR/DDR2 Bus Terminator VTT Regulator Source/Sink 3A
    }one LDO controller for VDAC
    }one LDO controller for GMCH/CPU Bus
    Terminator VTT_GMCH/CPU
● Operating with 5V and 12V Supply voltage
● ACPI Compliant Sleep Mode Control
● DriveAll Low Cost N-Mosfets
voltage Mode PWM Control
    }250kHz Fixed Frequency Oscillator (RT9644A: Two PWM controllers with phase shift 90o)
    }Simple voltage Mode Loop Control
    }Fast Transient Response
    }Over Current Protection
● Fully Adjustable Output voltage Down to Compatible with DDR2
integrated DDR/DDR2 Reference Buffer
integrated VIDPGD to Indicated VTT_GMCH/CPU Operational
● All Regulator Outputs Monitored by Under voltage Protection
● DDR/DDR2 VDDQ and Bus Terminator VTT Also integrated Over voltage Protection
integrated Thermal Shut Down
● RoHS Compliant and 100% Lead (Pb)-Free

Applications
● Motherboard, Desktop Servers : Single/Dual channel DDR/DDR2ACPI compliant
● Graphic Card : GPU and memory supply
● IA Equipments
● Telecomm Equipments
● DSP, ASIC or embedded processor and IO supplies
● High Power DC-DC Regulators

Part Name(s) : VT82C586B
ETC
Unspecified
Description : PCI integrated Peripheral controller

[VIA Technologies, Inc]

PC97 COMPLIANT PCI-TO-ISA BRIDGE
WITH ACPI, DISTRIBUTED DMA, PLUG AND PLAY,
MASTER MODE PCI IDE controller WITH ULTRADMA-33,
USB controller, KEYBOARD controller, AND REAL TIME CLOCK

• PC97 Compliant PCI to ISA Bridge
   − integrated ISA Bus controller with integrated DMA, timer, and interrupt controller
   − integrated Keyboard controller with PS2 mouse support
   − integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and Day/Month Alarm for ACPI
   − integrated USB controller with root hub and two function ports
   − integrated master mode enhanced IDE controller with enhanced PCI bus commands and UltraDMA-33 extensions
   − PCI-2.1 compliant with delay transaction
   − Eight double-word line buffer between PCI and ISA bus
   − one level of PCI to ISA post-write buffer
   − Supports type F DMA transfers
   − Distributed DMA support for ISA legacy DMA across the PCI bus
   − Fast reset and Gate A20 operation
   − Edge trigger or level sensitive interrupt
   − Flash EPROM, 2MB EPROM and combined BIOS support
   − Programmable ISA bus clock
   − Supports external IOAPIC interface for symmetrical multiprocessor configurations

• Inter-operable with VIA and other Host-to-PCI Bridges
   − Combine with VT82C585VPX/587VP for a complete 75MHz 6x86 / PCI / ISA system (Apollo VPX)
   − Combine with VT82C595 for a complete Pentium / PCI / ISA system (Apollo VP2)
   − Combine with VT82C685/687 for a complete Pentium-Pro /PCI / ISA system (Apollo P6)
   − Combine with VIA Apollo-AGP and Apollo Pro chipsets for new high-performance / enhanced-functionality systems
   − Inter-operable with other Intel or non-Intel Host-to-PCI bridges for a complete PC97 compliant PCI/ISA system

• Enhanced Master Mode PCI IDE controller with Extension to UltraDMA-33
   − Dual channel master mode PCI supporting four Enhanced IDE devices
   − Transfer rate up to 33MB/sec to cover PIO mode 4, multi-word DMA mode 2 drives, and UltraDMA-33 interface
   − Sixteen levels (doublewords) of prefetch and write buffers
   − Interlaced commands between two channels
   − Bus master programming interface for SFF-8038i rev.1.0 and Windows-95 compliant
   − Full scatter gather capability
   − Support ATAPI compliant devices including DVD devices
   − Support PCI native and ATA compatibility modes
   − Complete software driver support

• Universal Serial Bus controller
   − USB v.1.0 and Intel Universal HCI v.1.1 compatible
   − Eighteen level (doublewords) data FIFO with full scatter and gather capability
   − Root hub and two function ports
   − integrated physical layer transceivers with over-current detection status on USB inputs
   − Legacy keyboard and PS/2 mouse support

• Sophisticated PC97-Compatible Power Management
   − Supports both ACPI (Advanced Configuration and Power Interface) and legacy (APM) power management
   − ACPI v1.0 Compliant (all required features plus extensions for most efficient desktop power management)
   − APM v1.2 Compliant
   − Supports soft-off (suspend to disk) and power-on suspend with hardware automatic wake-up
   − one idle timer, one peripheral timer and one general purpose timer, plus 24/32-bit ACPI compliant timer
   − Dedicated input pin for external modem ring indicator for system wake-up
   − Enhanced integrated real time clock (RTC) with date alarm, month alarm, and century field
   − Normal, doze, sleep, suspend and conserve modes
   − System event monitoring with two event classes
   − Five multi-purpose I/O pins plus support for up to 16 general purpose input ports and 16 output ports
   − I2C serial bus support for JEDEC-compatible DIMM identification and on-board-device power control
   − Seven external event input ports with programmable SMI condition
   − Primary and secondary interrupt differentiation for individual channels
   − Clock throttling control
   − Multiple internal and external SMI sources for flexible power management models

• Plug and Play controller
   − PCI interrupts steerable to any interrupt channel
   − Three steerable interrupt channels for on-board plug and play devices
   − Microsoft Windows 95TM and plug and play BIOS compliant

• Pin-compatible upgrade from VT82C586 and VT82C586A for existing designs
• Built-in Nand-tree pin scan test capability
• 0.5um mixed voltage, high speed and low power CMOS process
• Single chip 208 pin PQFP

Description : USB 2.0 to 10/100 Ethernet controller

Overview
The LAN950x is a high performance Hi-Speed USB 2.0 to 10/100 Ethernet controller. With applications ranging from embedded systems, set-top boxes, and PVR’s, to USB port replicators, USB to Ethernet dongles, and test instrumentation, the device is a high performance and cost competitive USB to Ethernet connectivity solution.
The LAN950x contains an integrated 10/100 Ethernet PHY, USB PHY, Hi-Speed USB 2.0 device controller, 10/100 Ethernet MAC, TAP controller, EEPROM controller, and a FIFO controller with a total of 30 KB of internal packet buffering.
The internal USB 2.0 device controller and USB PHY are compliant with the USB 2.0 Hi-Speed standard. The device implements Control, Interrupt, Bulk-in, and Bulk-out USB Endpoints.

PRODUCT FEATURES
Highlights
◾ Single Chip Hi-Speed USB 2.0 to 10/100 Ethernet
   controller
integrated 10/100 Ethernet MAC with Full-Duplex
   Support
integrated 10/100 Ethernet PHY with HP Auto-MDIX
   support
integrated USB 2.0 Hi-Speed Device controller
integrated USB 2.0 Hi-Speed PHY
◾ Implements Reduced Power Operating Modes

Target Applications
◾ Embedded Systems
◾ Set-Top Boxes
◾ PVR’s
◾ CE Devices
◾ Networked Printers
◾ USB Port Replicators
◾ Standalone USB to Ethernet Dongles
◾ Test Instrumentation
◾ Industrial

Key Features
◾ USB Device controller
   — Fully compliant with Hi-Speed Universal Serial Bus
      Specification Revision 2.0
   — Supports HS (480 Mbps) and FS (12 Mbps) modes
   — Four endpoints supported
   — Supports vendor specific commands
   — integrated USB 2.0 PHY
   — Remote wakeup supported
◾ High-Performance 10/100 Ethernet controller
   — Fully compliant with IEEE802.3/802.3u
   — integrated Ethernet MAC and PHY
   — 10BASE-T and 100BASE-TX support
   — Full- and half-duplex support
   — Full- and half-duplex flow control
   — Preamble generation and removal
   — Automatic 32-bit CRC generation and checking
   — Automatic payload padding and pad removal
   — Loop-back modes
   — TCP/UDP/IP/ICMP checksum offload support
   — Flexible address filtering modes
   – one 48-bit perfect address
   – 64 hash-filtered multicast addresses
   – Pass all multicast
   – Promiscuous mode
   – Inverse filtering
   – Pass all incoming with status report
   — Wakeup packet support
   — integrated Ethernet PHY
   – Auto-negotiation
   – Automatic polarity detection and correction
   – HP Auto-MDIX support
   – Link status change wake-up detection
   — Support for 3 status LEDs
   — External MII and Turbo MII support HomePNA™ and
      HomePlug® PHY
◾ Power and I/Os
   — Various low power modes
   — NetDetach feature increases battery life 1
   — Supports PCI-like PME wake 1
   — 11 GPIOs
   — Supports bus-powered and self-powered operation
   — integrated power-on reset circuit
   — Single external 3.3v I/O supply
   – Internal core regulator
◾ Miscellaneous Features
   — EEPROM controller
   — Supports custom operation without EEPROM 1
   — IEEE 1149.1 (JTAG) Boundary Scan
   — Requires single 25 MHz crystal
◾ Software
   — Windows XP/Vista Driver
   — Linux Driver
   — Win CE Driver
   — MAC OS Driver
   — EEPROM Utility
◾ Packaging
   — 56-pin QFN (8x8 mm) Lead-Free RoHS Compliant
◾ Environmental
   — Commercial Temperature Range (0°C to +70°C)
   — Industrial Temperature Range (-40°C to +85°C)

Microchip
Microchip Technology
Description : LAN950x USB 2.0 to 10/100 Ethernet controller

OVERVIEW
The LAN950x is a high performance solution for USB to 10/100 Ethernet port bridging. With applications ranging from embedded systems, set-top boxes, and PVRs, to USB port replicators, USB to Ethernet dongles, and test instrumentation, the device is targeted as a high performance, low cost USB/Ethernet connectivity solution.
The LAN950x contains an integrated 10/100 Ethernet PHY, USB PHY, Hi-Speed USB 2.0 device controller, 10/100 Ethernet MAC, TAP controller, EEPROM controller, and a FIFO controller with a total of 30 KB of internal packet buffering. Two KB of buffer memory are allocated to the Transaction Layer Interface (TLI), while 28 KB are allocated to the FIFO controller (FCT).
The internal USB 2.0 device controller and USB PHY are compliant with the USB 2.0 Hi-Speed standard. The device implements Control, Interrupt, Bulk-in, and Bulk-out USB Endpoints.

Highlights
• Single Chip Hi-Speed USB 2.0 to 10/100 Ethernet controller
integrated 10/100 Ethernet MAC with Full-Duplex Support
integrated 10/100 Ethernet PHY with HP AutoMDIX support
integrated USB 2.0 Hi-Speed Device controller
integrated USB 2.0 Hi-Speed PHY
• Implements Reduced Power Operating Modes

Target Applications
• Embedded Systems
• Set-Top Boxes
• PVRs
• CE Devices
• Networked Printers
• USB Port Replicators
• Standalone USB to Ethernet Dongles
• Test Instrumentation
• Industrial

Key Features
• USB Device controller
   - Fully compliant with Hi-Speed Universal
      Serial Bus Specification Revision 2.0
   - Supports HS (480 Mbps) and FS (12 Mbps) modes
   - Four endpoints supported
   - Supports vendor specific commands
   - integrated USB 2.0 PHY
   - Remote wakeup supported
• High-Performance 10/100 Ethernet controller
   - Fully compliant with IEEE802.3/802.3u
   - integrated Ethernet MAC and PHY
   - 10BASE-T and 100BASE-TX support
   - Full- and half-duplex support
   - Full- and half-duplex flow control
   - Preamble generation and removal
   - Automatic 32-bit CRC generation and checking
   - Automatic payload padding and pad removal
   - Loop-back modes
   - TCP/UDP/IP/ICMP checksum offload support
   - Flexible address filtering modes
      –one 48-bit perfect address
      –64 hash-filtered multicast addresses
      –Pass all multicast
      –Promiscuous mode
      –Inverse filtering
      –Pass all incoming with status report
   - Wakeup packet support
   - integrated Ethernet PHY
      –Auto-negotiation
      –Automatic polarity detection and correction
      –HP Auto-MDIX support
      –Link status change wake-up detection
   - Support for 3 status LEDs
   - External MII and Turbo MII support HomePNA™ and HomePlug® PHY
• Power and I/Os
   - Various low power modes
   - NetDetach feature increases battery life1
   - Supports PCI-like PME wake1
   - 11 GPIOs
   - Supports bus-powered and self-powered operation
   - integrated power-on reset circuit
   - Single external 3.3v I/O supply
      –Internal core regulator
• Miscellaneous Features
   - EEPROM controller
   - Supports custom operation without EEPROM1
   - IEEE 1149.1 (JTAG) Boundary Scan
   - Requires single 25 MHz crystal
• Software
   - Windows XP/Vista Driver
   - Linux Driver
   - Win CE Driver
   - MAC OS Driver
   - EEPROM Utility
• Packaging
   - 56-pin QFN (8x8 mm) RoHS Compliant Environmental
   - Commercial Temperature Range (0°C to +70°C)
   - Industrial Temperature Range (-40°C to +85°C)

Description : P-TYPE LASER DIODE DRIVER

FEATURES
✦ Peak value controlled laser driver for operation from CW up to
   155 MHz
✦ Spike-free switching of laser currents of up to 300 mA
✦ Setting of laser power (APC) via external resistor
✦ Optional current control (ACC)
✦ Laser current limitation
✦ LVDS/TTL switching input with TTL monitor output
✦ Low current consumption sleep-mode < 50 µA
✦ Safety shutdown with overtemperature
✦ Error signal output with overtemperature, undervoltage and
   overcurrent
✦ All current LD types can be used (P/M/N configurations)
✦ Fast soft-start
✦ Strong suppression of transients with small external capacitors

APPLICATIONS
✦ Pulsed and CW laser diode
   modules
✦ Laser diode pointers
✦ Laser levels
✦ Bar-code readers
✦ Distance measurement

Part Name(s) : VT82C596 VT82C596B
ETC
Unspecified
Description : PCI integrated PERIPHERAL controller

[VIA Technologies, Inc.]

PC98 COMPLIANT PCI-TO-ISA BRIDGE WITH ACPI, ENHANCED POWER MANAGEMENT, SMBUS, APIC, DISTRIBUTED DMA, SERIAL IRQ, PLUG AND PLAY, ULTRADMA-33/66 MASTER MODE PCI-EIDE controller, USB controller, KEYBOARD controller, AND RTC

• Inter-operable with VIA and other Host-to-PCI Bridges
   − Combine with VT82C598 (Apollo MVP3) for a complete 66 / 75 / 83 / 100MHz Socket-7 PCI / AGP / ISA system
   − Combine with VT82C693 (Apollo ProPlus) for a complete 66 / 100 MHz Socket-370 or Slot-1 PCI / ISA system
   − Combine with VT82C693A (Apollo Pro133) for a complete 66 / 100 / 133 MHz Skt-370 or Slot-1 PCI / ISA system
• PC98 Compliant PCI to ISA Bridge
   − integrated ISA Bus controller with integrated DMA, timer, and interrupt controller
   − integrated Keyboard controller with PS2 mouse support
   − integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and Day/Month Alarm for ACPI
   − integrated USB controller with root hub and two function ports
   − integrated UltraDMA-33/66 master mode EIDE controller with enhanced PCI bus commands
   − PCI-2.1 compliant with delay transaction
   − Eight double-word line buffer between PCI and ISA bus
   − one-level PCI to ISA post-write buffer
   − Supports type F DMA transfers
   − Distributed DMA support for ISA legacy DMA across the PCI bus
   − Sideband signal support for PC/PCI and serial interrupt for docking and non-docking applications
   − Serial Interrupt input
   − Fast reset and Gate A20 operation
   − Edge trigger or level-sensitive interrupts
   − Flash EPROM, 2Mb EPROM and combined BIOS support
   − Supports positive and subtractive decoding
• Universal Serial Bus controller
   − USB v.1.1 and Intel Universal HCI v.1.1 compatible
   − Eighteen level (doublewords) data FIFO with full scatter / gather capabilities
   − Root hub and two function ports
   − integrated physical layer transceivers with over-current detection status on USB inputs
   − Legacy keyboard and PS/2 mouse support
• Advanced Programmable Interrupt controller (APIC)
   − integrated on-chip
   − Control pins provided for support of optional external APIC
   − Used to extend system interrupt capability
   − PC98 compliant
   (Continue ...)

Description : 12V Synchronous Buck PWM DC-DC and Linear Power controller

General Description
The RT9259 is a dual-channel DC/DC controller specifically designed to deliver high quality power where 12V power source is available. This part consists of a synchronous buck controller and an LDO controller. The synchronous buck controller integrates Mosfet drivers that support 12V+12V bootstrapped voltage for high efficiency power conversion. The bootstrap diode is built-in to simplify the circuit design and minimize external part count. The LDO controller drives an external N-Mosfet for lower power requirement.

Features
Single 12V Bias Supply
Support Dual Channel Power Conversion
  one Synchronous Rectified Buck PWM controller
  one Linear controller
Both controllers Drive Low Cost N-Mosfets
Adjustable Frequency from 150kHz to 1MHz and Free-Run Frequency at 230kHz
Small External Component Count
Output voltage Regulation
  PWM controller : ±1% Accuracy
  LDO controller : ±2% Accuracy
Two Internal VREFPower Support Lower to 0.8V
Adjustable External Compensation
Linear controller Drives N-Mosfet Pass transistor
Fully-Adjustable Outputs
Under voltage Protection for Both Outputs
Over Current Fault Monitor on Mosfet; No Current Sense Resistor is Required.
RoHS Compliant and 100% Lead (Pb)-Free

Applications
Graphic Card GPU, Memory Core Power
Graphic Card Interface Power
Motherboard, Desktop and Servers Chipset and Memory  Core Power
IA Equipments
Telecomm Equipments
High Power DC-DC Regulators

Description : M-TYPE CW LASER DIODE DRIVER

FEATURES
♦ Optimised for M-type laser diodes
   (single supply, case grounded)
♦ CW operation up to 350 mA from a single supply of 3.6 to 15 V
♦ Rapid soft start after power-on
♦ Simple power adjustment via an external resistor
integrated reverse polarity protection for the iC and laser diode
♦ Strong suppression of transients with small external
   capacitors; integrated flyback path
♦ Permanent shutdown with excessive temperature and
   overcurrent (i.e. if the laser diode is damaged or the feedback
   current path fails)
♦ Two feedback inputs permit all current laser diode types to be
   used (M/P/N configurations)
♦ Modulation via the feedback inputs possible
♦ Wide monitor current range from 2.5 µA to 6.25 mA

APPLICATIONS
♦ Blue laser diodes
♦ Laser diode modules
♦ Laser diode pointers
♦ Laser levels
♦ Bar-code readers

Description : Keyboard and Embedded controller for Notebook PC

Description
The MEC1310 is a 128-pin 3.3V LPC-based ACPI 2.0 and PC99/PC2001 compliant Notebook I/O controller. See FIGURE 1: MEC1310 Block Diagram on page 4. The MEC1310 incorporates a high-performance 8051-based keyboard and system controller with internal embedded 64K SRAM; a 1K byte Boot ROM, and 64-bytes battery backed registers. The embedded 64K SRAM is loaded via HOST/8051 SPI Memory Interface. The HOST/8051 SPI Memory Interface can be configured in Switched SPI Flash Configuration or Parallel Shared SPI Flash Configuration.
The MEC1310 has four PS/2 ports; an 16C550A-compatible 2 pin UART for Debug Port; three 8584-style I2C/SMBus controllers with two selectable ports per controller; a Serial IRQ peripheral agent interface; three ACPI Embedded controller Interface; General Purpose I/O pins and seven General Purpose Outputs; four independently programmable pulse width modulators; dual fan control through the implementation of two fan tachometer input pins, RPM-PWM block with one tachometer input and one PWM output; hardware monitoring of a PWM input and maskable hardware wake up events; one BC-Link Combined High Speed/Low Speed Bus Master controller; 5 channel Analog to Digital Converter.
The MEC1310 has two separate power planes to provide “instant on” and system power management functions. Additionally, the MEC1310 incorporates sophisticated power control circuitry (PCC). The PCC supports multiple low power down modes. Wake-up events and ACPI-related functions are supported through the SCI Interface.

Product Features
• 3.3V Operation with 5V Tolerant Buffers on PS/2 pins
• ACPI 1.0/2.0 PC99/PC2001 Compliant
• LPC Interface with Clock Run Support
   - Supports LPC Bus frequencies of 19.2MHz to 33MHz
   - Serial IRQ Interface Compatible with Serialized IRQ Support for PCI Systems
   - 15 Direct IRQs
   - ACPI SCI Interface
   - nSMI output and supporting PM registers
   - Shadowed write only registers
• Internal 64K SRAM in MEC1310
   - Loaded at VCC1 power from the HOST/8051 SPI Memory Interface
   - Provides 64KB of 8051 program space
   - 32k-Byte region shared with 8051data space
• HOST/8051 SPI Memory Interface
   - 3-pin Full Duplex serial communication interface.
   - one Chip Select Pins
   - Fully 8051 Controlled
   - Hardware Support for two SPI Flash Configu rations:
      – Switched SPI Flash Configuration
      – Parallel Shared SPI Flash Configuration
      – Debug Programming Interface
• Two Power Planes
   - Low Standby Current in Sleep Mode
• Three ACPI Embedded controller Interface
• Configuration Register Set Compatible with ISA Plug-and-Play Standard (Version 1.0a)
• High-Performance Embedded 8051 Keyboard and System controller
   - Provides System Power Management
   - System Watch Dog Timer (WDT)
   - 8042 Style Host Interface
   - Supports Interrupt and Polling Access
   - 1024 Boot /ROM
   - 256 Bytes Data RAM
   - On-Chip Memory-Mapped Control Registers
   - Access to VCC0 Backed Registers
   - Up to 18x8 Keyboard Scan Matrix
   - Two 16-Bit Timer/Counters
   - integrated Full-Duplex Serial Port Interface
   - Seventy-Three 8051 Interrupt Sources
   - Thirty-Two 8-Bit, Host/8051 Mailbox Registers
   - Sixty-Four Maskable Hardware Wake-Up Events
   - Fast GATEA20
   - Fast CPU_RESET
   - Multiple Clock Sources and Operating Fre quencies
   - IDLE and SLEEP Modes
   - Trace FIFO Debug Port
• Accurate Fail-Safe Ring Oscillator
   - Single Clock source for most 8051 and SIO functions
   - Provides 2% frequency accuracy
   - Lock Bit provides status
   - 32.768KHz-input clock
   – Single ended input
   – Compatible with south bridge SUSCLK/ RSMRST# gating rules
   – replacement 32K distribution available when RSMRST# is asserted
   – Very low power state with only external 32K clock distributed
integrated Standby Power Reset Generator
   - VCC1_RST# open drain output
   - Accepts External driven Reset
• VCC0 Backed Resources
   - 64 Byte VCC0 Backed Registers
   - VCC0 Backed Status Register
• Three 8584-Style I2C/SMBus controllers
   - 8051 Controlled Logic Allows I2C/SMBus Master or Slave Operation
   - I2C/SMBus controllers are Fully Operational on Standby Power
   - Two controllers with 2 Sets of Dedicated Pins per I2C/SMBus controller
   - one controller with one Set of Dedicated Pins per I2C/SMBus controller
• Four independent Hardware Driven PS/2 Ports
   - GPIO signal function associated with each pin
• PECI Interface 2.0  (Continue....)

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