Description:

82C392 Data Buffer Controller (DBC)

Features:

• Data Bus Conversion
• Parity Generation/Detection
• AT-BUS direction control
• Reset logic
• Clock source for 206 and 8042
• Chip select for Keyboard Controller and ATC
• Speaker Control
• Port B, 70H and NMI logic
• Numerical Processor Interface
• Keyboard reset and Gate A20 emulation logic