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GMS81C2112 Datasheet(PDF) 72 Page - Hynix Semiconductor |
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GMS81C2112 Datasheet(HTML) 72 Page - Hynix Semiconductor |
72 / 107 page ![]() GMS81C2112/GMS81C2120 66 JUNE. 2001 Ver 1.00 . Figure 16-2 Block Diagram of Interrupt Figure 16-3 Interrupt Enable Flag Timer 0 INT1 INT0 INT0IF IENH Interrupt Enable Interrupt Enable IRQH IRQL Interrupt Vector Address Generator Internal bus line Register (Lower byte) Internal bus line Register (Higher byte) Release STOP To CPU Interrupt Master Enable Flag I-flag IENL I-flag is in PSW, it is cleared by "DI", set by "EI" instruction. When it goes interrupt service, I-flag is cleared by hardware, thus any other interrupt are inhibited. When interrupt service is completed by "RETI" instruction, I-flag is set to "1" by hardware. [0E2H] [0E3H] [0E4H] [0E5H] INT1IF T0IF Timer 1 T1IF A/D Converter ADIF SIOIF BITIF Watchdog Timer Serial BIT WDTIF Communication T1E R/W INT0E INITIAL VALUE: 0000 ----B ADDRESS: 0E2H IENH INT1E MSB T0E R/W Timer/Counter 1 interrupt enable flag SPIE R/W ADE Serial Communication interrupt enable flag INITIAL VALUE: 0000 ----B ADDRESS: 0E3H IENL WDTE MSB LSB - - - BITE R/W Timer/Counter 0 interrupt enable flag - R/W R/W R/W R/W - - -- Basic Interval imer interrupt enable flag Watchdog timer interrupt enable flag A/D Convert interrupt enable flag External interrupt 1 enable flag External interrupt 0 enable flag 0: Disable 1: Enable VALUE LSB - - -- - - -- |