INSTRUMENT DESCRIPTION The 9010A Microsystem Troubleshooter is a portable service instrument for testing and troubleshooting microprocessor-based equipment. The 9010A provides the following features: • Keyboard selection of functions and operating modes. • 32-character display for presentation of test results, operator messages, and prompts. • Single-keystroke validation of electrical integrity of juP bus. • Learn function for mapping UUT address space and identifying RAM, ROM, and I/O. • Comprehensive, functional testing of RAM, ROM, and I/O. • Nine troubleshooting functions for troubleshooting on or off the bus. • On-line programming for development of system test and fault isolation programs. • Consistent prompts and defaults for easy selection and specification of operations • Detailed error messages for locating UUT failures. • Dual-function stimulus/response probe for generating bus-synchronized pulses or gathering signatures, counting events, and detecting logic levels. • Hexadecimal keyboard for data entry. ® Sixteen 32-bit internal registers for storage and manipulation of data. • Built-in cassette recorder for nonvolatile storage and transfer of test programs and data on minicassettes. • Optional RS-232 port for remote communication. • Optional interface pods for interfacing with the following microprocessors: B080, 8085, Z80, 6800, 6502, and 9900 - with more interface pods to come.