| 摘要 |
PURPOSE:To obtain a microprocessor debugging device capable of bus tracing and breaking on a physical address basis by fetching addresses converted by a memory controller. CONSTITUTION:A probe 2a can mount a memory controller 12 detached from a target board 1 and the 1st multiplexer 13 which selects a logical address outputted by a microprocessor 11 or the address of the base part of a physical address outputted by the memory control part 12 and the 2nd multiplexer 14 which selects the address of the extended part of the physical address outputted by the memory controller or zero data are arranged, so that the logical address or physical address is obtained from the composite output of the 1st and the 2nd multiplexers optionally. Thus, selections are made by the multiplexers to extract the logical address or physical address optionally, and this is sent to a main device side and utilized for tracing an address bus.
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