W216 - Cypress Semiconductor

W216 Spread Spectrum FTG for 440BX and VIA Apollo Pro-133

CPU Outputs 1 and 2: Frequency is set by the FS0:3 inputs or through serial input O interface, see Tables 2 and 6. These outputs are affected by the CLK_STOP# input. Free-Running CPU Output: Frequency is set by the FS0:3 inputs or through serial input O interface, see Tables 2 and 6. This output is not affected by the CLK_STOP# input. PCI Outputs 1 through 5.

Features

• Maximized EMI Suppression using Cypress’s Spread Spectrum Technology
• Single chip system FTG for Intel® 440BX AGPset and VIA Apollo Pro-133
• Three copies of CPU output
• Seven copies of PCI output
• One 48-MHz output for USB / One 24-MHz for SIO
• Two buffered reference outputs
• Two IOAPIC outputs
• Seventeen SDRAM outputs provide support for 4 DIMMs
• Supports frequencies up to 150 MHz
• I2C™ interface for programming
• Power management control inputs Table 1. Mode Input Table Mode 0 1 Pin 3 PCI_STOP# REF0 Key Specifications CPU Cycle-to-Cycle Jitter: .