The M32R/ECU contains a JTAG (Joint Test Action Group) interface compliant with IEEE Standard Test Access Port and Boundary-Scan Architecture (IEEE td. 1149.1a-1993). This JTAG interface can be used as an input/output path for boundary-scan test (boundary-scan path). For details about IEEE 1149.1 JTAG test access ports, see IEEE Std. 1149.1a-1993 documentation.The JTAG interface in the M32R/ECU is used to connect a JTAG emulator during debugging as well. In this chapter, the JTAG interface is explained assuming its use as an input/output path for boundary-scan test.
The Real-Time Debugger (RTD) is a serial interface through which to read or write to any location in the entire area of the internal RAM by using commands from outside the microcomputer. Because data transfers between the RTD and internal RAM are performed via a dedicated internal bus independently of the M32R-FPU, RTD operation can be controlled without the need to stop the M32R-FPU.
Non-Break Debug (NBD) has the RAM monitor and event output functions. A dedicated DMA is incorporated in NBD, so that accesses to the internal RAM, etc. are accomplished using this DMA.RAM monitor function:This function is provided for reading and writing to and from all resources connected to the internal/external buses mapped in the address space. It allows the RAM data, etc. to be referenced and altered. Furthermore, accesses to the address space used exclusively for NBD (i.e., NBD space) are accomplished using this function.
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RR, the 1000 K7 ECU I sent to you should arrive the next days....Good luck with it!By the way: Seems, that they did a reflash on the K7 EU ECUs at the factory.The K7 EU ECUs I have seen have two labels. The first says 32920-21H00 and over this label sticks a second one with 32920-21H50 printed on it.