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UM0434 Datasheet(PDF) 289 Page - STMicroelectronics |
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UM0434 Datasheet(HTML) 289 Page - STMicroelectronics |
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289 / 390 page  External core complex interfaces UM0434 290/391 Figure 61 shows the relationship between p_ipend and the interrupt request inputs. Note that p_ipend is asserted combinationally from the p_extint_b and p_critint_b inputs. Figure 61. Interrupt pending operation Figure 62 shows the relationships among p_iack, the interrupt request inputs, and exception vector fetching. Figure 62. Interrupt acknowledge operation case 1 m_clk p_extint_b p_ipend p_critint_b Exception vector fetch pair vec A vec B A handler A +8 A +16 idle 1 outst. 2 outst. 1st inst pair int A handlr A hand + 8 int A hand addr int A hand + 8 12 345 m_clk p_critint_b p_extint_b p_voffset[0:15] sample point p_iack p_avec_b p_treq_b p_addr attributes p_r/w p_tbusy_b p_data_in p_ta_b mmu access cache access cache miss |
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