INS8298E Datasheet | National Semiconductor

Description Features The INS8298/1NS8298E is a 65k MAXI-ROMTM- , organized into 8192 8-bit words, that is preprogrammed with the 8080A Lawrence ore Laboratory (LLL) BASIC Interpreter. Unp versions of the INS8298 and INS8298E are t pin,800ns access) and INS8364E/MM5216 access). respectively. Both the INS8298 and plete TTL patibility and single supply. Three chip selects controlling TRI- outputs allow for memory expansion. The 8080A LLL BASIC Interpreter operates with the INS8080A microprocessor system to provide a high-level, easy-to-use language for performing both control and putation functions in the INS8080A. Designed for use in data acquisition and control applications, the LLL BASIC Interpreter enables the user to write and debug a program on-line. The interpreter executes source code statements directly, thus avoiding the need to translate into machine language. This approach has the advantage of easier source code manipulation (because the source is always available). and instant revision of the program when errors are detected. - Reduces software effort in microputer applications - Provides easy source code manipulation and instant program revision - Allows immediate-mode execution of program statements to assist program checkout Ineludes floating-point arithmetic package to provide I putational capability . h-speed, machine-language sub- Available as INS8298 (28 pin, 800 ns access) and INS8298E (24 pin, 450 ns access) - MICROBUSTM- patible - A trademark of National Semiconductor Corporation. General System Configuration 411 1412 CLOCKS CONTROL SIGNALS (RESET. READV) INSl II8DA MICROPROCESSOR - - - '""1 R.... 'NSl2BI BASIC INTERPRETER f HEXADECIMAL DEBUGGER (HOT) @ , 978 National Semiconductor Corp. 0-139 The LLL BASIC Interpreter is used to translate, debug, and execute user-written ASCII programs in read/write memory (RAM). Each statement is interpreted from its ASCII BASIC format, and then executed line-by-line. An LLL...