The CDP1020 is an ACPI compliant Device Bay Controller (DBC) that can control two device bays. The controller interfaces to the host system through the industry standard I2C or System Management Bus (SMBus) and is fully compliant with Device Bay Specification 0.90. The CDP1020 is designed to be compatible with the integrated SMBus host controller of the PiiX4/PiiX6 in Intel Architecture platforms.

Features
• Fully Compliant with Device Bay Specification 0.90 and ACPI Specification 1.0
• Industry Standard SMBus/I2C Interface
• Controls for Two Device Bays
• Onboard Level Shifting for Direct Drive of N-Channel MOSFET VID Switches
• Integrated Pull-up Resistors on 1394PRx, USBPRx, SECUREx, and REMREQx Inputs
• RC Type Oscillator - Low Cost and Low Power Consumption
• Operational Voltage from 3.3 to 5.5V
• “5V Tolerant” Inputs at all Operating Voltages
• Write-Once BIOS/External Configuration
• Removal Request Input for Each Bay
• Security Lock Input for Each Bay
• High Current Device Bay LED Indicator Drivers With Separate High-Side Power Input
• Configurable Level/Pulse Bay Solenoid Drivers
• Programmable Insertion Time Out Delay
• HCMOS Technology; 28 Lead Plastic SOIC