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M37220M3-157SP Datasheet(PDF) 11 Page - Mitsubishi Electric Semiconductor |
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M37220M3-157SP Datasheet(HTML) 11 Page - Mitsubishi Electric Semiconductor |
11 / 53 page MITSUBISHI MICROCOMPUTERS M37220M3-XXXSP SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER 11 Fix this bit to “0.” INT3 polarity switch bit 0 : Positive polarity 1 : Negative polarity Interrupt input polarity register (RE : address 00F916) Fix these bits to “0.” INT1 polarity switch bit 0 : Positive polarity 1 : Negative polarity INT2 polarity switch bit 0 : Positive polarity 1 : Negative polarity 7 0 00 Interrupt request register 1 (IREQ1 : address 00FC16) 0 : No interrupt request issued 1 : Interrupt request issued Interrupt request register 2 (IREQ2 : address 00FD16) Serial I/O interrupt request bit Fix this bit to “0.” 7 INT1 interrupt request bit 0 INT2 interrupt request bit XIN/4096 interrupt request bit 0 0 : Interrupt disabled 1 : Interrupt enabled Serial I/O interrupt enable bit 7 Interrupt control register 2 (ICON2 : address 00FF16) INT1 interrupt enable bit 0 INT2 interrupt enable bit Fix this bit to “0.” XIN/4096 interrupt enable bit 0 Fix these bits to “0.” 00 0 7 Interrupt control register 1 (ICON1 : address 00FE16) Timer 1 interrupt enable bit 0 Timer 2 interrupt enable bit Timer 3 interrupt enable bit Timer 4 interrupt enable bit CRT interrupt enable bit VSYNC interrupt enable bit INT3 interrupt enable bit 7 Timer 1 interrupt request bit 0 Timer 2 interrupt request bit Timer 3 interrupt request bit Timer 4 interrupt request bit CRT interrupt request bit VSYNC interrupt request bit INT3 interrupt request bit 0 Fig. 5. Structure of interrupt-related registers |
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