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XM014429B Datasheet(PDF) 48 Page - Xmos Ltd. |
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XM014429B Datasheet(HTML) 48 Page - Xmos Ltd. |
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48 / 83 page ![]() XU6--QF6B Datasheet Bits Perm Init Description Identier :8 RO - Reserved : DRW -hot vector dening which threads are stopped when not in debug mode. Every bit which is set prevents the respective thread from running. DBG_RUN_CTRL_STOP x8: Debug core control B. Debug scratch DBG_SCRATCH 0x20 .. 0x27 A set of registers used by the debug ROM to communicate with an external debugger, for example over JTAG. This is the same set of registers as the Debug Scratch registers in the xCORE tile conguration. Bits Perm Init Description Identier : DRW Value. ALL_BITS x .. x: Debug scratch B. Instruction breakpoint address DBG_IBREAK_ADDR 0x30 .. 0x33 This register contains the address of the instruction breakpoint. If the PC matches this address, then a debug interrupt will be taken. There are four instruction breakpoints that are controlled individually. Bits Perm Init Description Identier : DRW Value. ALL_BITS x .. x: Instruction breakpoint address B. Instruction breakpoint control DBG_IBREAK_CTRL 0x40 .. 0x43 This register controls which logical cores may take an instruction breakpoint, and under which condition. Bits Perm Init Description Identier : RO - Reserved :6 DRW A bit for each thread in the machine allowing the breakpoint to be en- abled individually for each thread. BRK_THREADS : RO - Reserved DRW When break when PC == IBREAK_ADDR. When = break when PC != IBREAK_ADDR. IBRK_CONDITION DRW When the breakpoint is enabled. BRK_ENABLE x .. x: Instruction breakpoint control |
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