HP E2484A Preprocessor Interface for the Intel i960RP

Product Summary

The HP E2484A preprocessor for the Intel i960RP is a mechanical and electrical interface between the Intel i960RP and various HP logic analyzers for real-time timing and state analysis. The preprocessor routes signals; aligns address, data and status signals; and allows filtering of non-data transfers such as idle and wait states.

Preprocessor software configures the logic analyzer labeling address, data lines and status lines. Additionally, when a state trace is displayed, i960RP mnemonics are listed providing data captured and the controlling program.

Product Features

• In Timing mode, the HP E2484A buffers i960RP signals and passes them to the logic analyzer.

• In State-per-clock mode, all valid data transfers on the i960RP bus clock data into the logic analyzer.

• In State-per-transfer mode, the HP E2484A aligns address, status, and data, before clocking the logic analyzer, deskewing the pipelined bus of the i960RP processor.

Product Specifications

Package Supported

Logic Analyzers Supported

Probes Required

Five 17-channel pods are required for instruction inverse assembly.

Six 17-channel pods are required to monitor all i960RP core signals. Monitoring activity on the i960RP PCI buses requires the use of a aseparate PCI bus preprocessor(s).

Power and Pod Termination Requirements

All power is supplied by the logic analyzer. Probe/pod termination networks are built in to the preprocessor.

Microprocessor Bus Clock Speed

Timing Analysis Support

State Mode

The HP E2484A filters states so that only valid data transfers (Instruction fetches/caches, fills, data read and writes) get clocked into the analyzer in state-per-transfer mode. Wait states, idle states (that is, states when there is no valid data on the bus) do not get passed to the analyzer. This ensures optimal use of the analyzer's acquisition memory. Logic analyzer time tags can be used to measure the duration of the transactions from state to state.

Address bit A0 and A1 are reconstructed by the HP E2484A hardware improving state analysis triggering and disassemly readability

The following i960RP instructions can be selected to be displayed or suppressed:

unexecuted prefetches

jumps

calls/returns, and other instructions

memory read/write cycles

Monitors all i960RP processor core signals (excluding PCI buses) of interest including the on-chip interrupt and DMA controllers

Signal Line Loading

Approximately 24pF DEN#, RESET#, and RDYRCV#

Approximately 16pF all other signals

Adapter

The HP E2484A preprocessor includes an adapter that is fully compatible with the Intel i960RP Connector Specification for Using In-Circuit Emulators and Logic Analyzers with the i960RP Processor; specification Rev 2.0.

Environmental Characteristics

Temperature

Operation	0oC to + 50oC ( +32oC to + 131oF)
Altitude	50,000 feet (4,600 m)
Humidity	Up to 75% noncondensing. Avoid sudden, extreme temperature changes that could cause condensation on circuit board.

Product Ordering Information

HP E2484A       Preprocessor Interface for the Intel i960RP 

HP E32484A Intel i960RP Preprocessor Interface

If you do not have the Adobe Acrobat Reader necessary for viewing this documentation, download your Free Acrobat Reader now.

To help you make the right instrument choices

Your Field Sales Engineer is ready to answer your questions about specifications, applications and ordering. Find your Field Sales Engineer at your Local Sales Office.

[Hewlett-Packard] [Test & Measurement] [Product Information] [Model Number Index]

Contact HP Test & Measurement. (c) Copyright 1994, 1995, 1996, 1997 Hewlett-Packard Company.

Page Updated: Thursday June 19 16:14:09 UTC 1997