In-circuit emulator

Abstract

Abstract PROBLEM TO BE SOLVED: To provide an in-circuit emulator capable of accelerating data transfer speed and executing tracing operation continuously, without any break even at the data transfer time by compressing and storing trace data in a memory. SOLUTION: This emulator is provided with a trace memory 103 and a data compressing circuit 102, and the trace data are compressed and stored in the trace memory 103. The data compression circuit 102 compresses the trace data outputted by a trace control circuit 101 in the tracing operation for decreasing data traffic intensity. Consequently, the trace data can be transferred quickly to a host computer. Consequently, the response of the host computer 2 to the in-circuit emulator 1 can be improved, and the time for which the tracing operation is stopped for transferring the trace data can be shortened.

Inventors

• 👤 Katsuto Tono
• 👤 勝人 東野
• 👤 Tsutomu Mikami
• 👤 勉 三上
• 👤 Toru Morikawa
• 👤 徹 森河

Bibliographic Details