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M38B53M4-059FP Datasheet(PDF) 132 Page - Mitsubishi Electric Semiconductor |
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M38B53M4-059FP Datasheet(HTML) 132 Page - Mitsubishi Electric Semiconductor |
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132 / 355 page  2-44 38B5 Group User’s Manual APPLICATION 2.3 Serial I/O (3) Serial I/O1 and Serial I/O2 Fig. 2.3.12 Structure of Interrupt source switch register Fig. 2.3.13 Structure of Interrupt request register 1 3 4 Interrupt source switch register b7 b6 b5 b4 b3 b2 b1 b0 Interrupt source switch register (IFR: address 3916) b 0 1 2 5 6 7 Name 0 Functions At reset R W 0: INT4 interrupt 1: A-D conversion intrerrupt 0 0 0 0 0 0 0 INT3/serial I/O2 transmit interrupt switch bit (Note) INT4/A-D conversion interrupt switch bit Nothing is arranged for these bits. These are write disabled bits. When these bits are read out, the contents are “0”. 0: INT3 intrrupt 1: Serial I/O2 transmit interrupt Note: In the mask option type P, this bit is not available because INT3 funciton is not used. Interrupt request register 1 b7 b6 b5 b4 b3 b2 b1 b0 Interrupt request register 1 (IREQ1 : address 3C16) b 0 1 2 3 4 5 6 7 Name 0 Functions At reset R W 0 0 0 0 0 0 INT0 interrupt request bit INT1 interrupt request bit Serial I/O1 interrupt request bit Serial I/O automatic transfer interrupt request bit Timer X interrupt request bit Timer 1 interrupt request bit Timer 2 interrupt request bit INT2 interrupt request bit Remote controller /counter overflow interrupt request bit 0 : No interrupt request issued 1 : Interrupt request issued 0 : No interrupt request issued 1 : Interrupt request issued 0 : No interrupt request issued 1 : Interrupt request issued 0 : No interrupt request issued 1 : Interrupt request issued 0 : No interrupt request issued 1 : Interrupt request issued 0 : No interrupt request issued 1 : Interrupt request issued 0 : No interrupt request issued 1 : Interrupt request issued Timer 3 interrupt request bit 0 : No interrupt request issued 1 : Interrupt request issued 0 V V V V V V V V V: “0” can be set by software, but “1” cannot be set. |
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