PACE1754

PACE1754 SINGLE CHIP, 40MHz CMOS PROCESSOR INTERFACE CIRCUIT (PIC) FEATURES The PACE1754 (PIC) is a support chip for the PACE1750A/AE Processor. It eliminates the SSI/ MSI Logic and external system functions required in typical 1750A implementations. Provides a significant savings in part-count and power dissipation enhancing reliability and overall system speed performance. Provides an optimal interface when used with the PACE1753 MMU/COMBO in a full 1750A implementation. Provides the following additional important system functions: — Programmable READY for memory and I/O — Automatic READY during self-test and internal I/O instructions — 100KHz timer clock output provided — Programmable system watchdog—ranges from 1 µs to 1 minute — Programmable Bus time-out function — Memory Parity generation/detection — Error detection of unimplemented memory and/or I/O space addressing — First failing memory address register for diagnostics — High drive three-state address lat...