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3819 Datasheet(PDF) 79 Page - Renesas Technology Corp |
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3819 Datasheet(HTML) 79 Page - Renesas Technology Corp |
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79 / 218 page  65 3819 Group SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER MITSUBISHI MICROCOMPUTERS FFFD16 FFFB16 FFF916 FFF716 FFF516 FFF316 FFF116 FFEF16 FFED16 FFEB16 FFE916 FFE716 FFE516 FFE316 FFE116 FFDF16 FFDD16 Priority 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Remarks Non-maskable External interrupt (active edge selectable) External interrupt (active edge selectable) External interrupt (active edge selectable) Valid when interrupt interval determination operates Valid when serial I/O ordinary mode is selected Valid when serial I/O automatic transfer mode is selected Valid when serial I/O 2 is selected Valid when serial I/O 3 is selected STP release timer underflow External interrupt (active edge selectable) Valid when INT4 interrupt is selected External interrupt (active edge selectable) Valid when A-D converter interrupt is selected Valid when FLD blanking interrupt is selected Valid when FLD digit interrupt is selected Non-maskable software interrupt Functional description supplement Interrupt 3819 group permits interrupts on the basis of 20 sources. It is vector interrupts with a fixed priority system. Accordingly, when two or more interrupt requests occur during the same sampling, the higher-priority interrupt is accepted first. This priority is determined by hardware, but variety of priority processing can be performed by software, using an interrupt enable bit and an interrupt disable flag. For interrupt sources, vector addresses and interrupt priority, refer to “Table 5.” Table 5. Interrupt sources, vector addresses and interrupt priority FFFC16 FFFA16 FFF816 FFF616 FFF416 FFF216 FFF016 FFEE16 FFEC16 FFEA16 FFE816 FFE616 FFE416 FFE216 FFE016 FFDE16 FFDC16 Interrupt sources Reset (Note) INT0 interrupt INT1/ZCR interrupt INT2 interrupt Remote control/counter overflow interrupt Serial I/O 1 interrupt Serial I/O 1 automatic transfer interrupt Serial I/O 2 interrupt Serial I/O 3 interrupt Timer 1 interrupt Timer 2 interrupt Timer 3 interrupt Timer 4 interrupt Timer 5 interrupt Timer 6 interrupt INT3 interrupt INT4 interrupt A-D conversion interrupt FLD blanking interrupt FLD digit interrupt BRK instruction interrupt High-order Low-order Vector addresses Note : Reset functions in the same way as an interrupt with the highest priority. |
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