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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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ST7285C Datenblatt(PDF) 20 Page - STMicroelectronics |
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ST7285C Datenblatt(HTML) 20 Page - STMicroelectronics |
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20 / 117 page  20/117 ST7285C 3.5 INTERRUPTS A list of interrupt sources is given inTable 5 below, together with relevant details for each source. In- terrupts are serviced according to their order of pri- ority, starting with I0, which has the highest priori- ty, and so to I11, which has the lowest priority. The following list describes the origins for each in- terrupt level: – I0 connected to Software Interrupt (TRAP) – I1 connected to Port G3 – I2 connected to Port F0, F1, F2, F3 – I3 connected to SPI A – I4 connected to Timer A – I5 connected to GBS interrupt – I6 connected to Timer B – I7 connected to SPI B – I8 connected to SCI – I9 connected to Ports D4, D5 – I10 connected to Ports C4, C5 – I11 connected to I 2C Exit from HALT mode may only be triggered by an External Interrupt on one of the following ports: C4(I10), C5(I10), D4(I9), D5(I9), F0(I2), F1(I2), F2(I2), F3(I2) and G3(I1). If more than one input pin of a group connected to the same interrupt line is selected simultaneously, these will be logically ORed. Table 5. Interrupt Mapping Interrupt source Vector Address Interrupts Register Flag name CPU interrupts - FFFEh-FF FFh Reset N/A N/A RESET I0 FFFCh-FFFDh Software N/A N/A TRAP I1 FFFA h-FFFBh Ext. Interrupt (Port G3) N/A N/A INT1 I2 FFF8h-FFF 9h Ex. Interrupt (Ports F0, F1, F2, F3) N/A N/A INT2 I3 FFF6h-FFF 7h Transfer Complete SPI A Status SPIF1_A SPI_A “ “ Mode Fault “ MODF1_A “ I4 FFF4h-FFF 5h Input Capture 1 Timer A Status ICF1_A TIMER_A “ “ Output Compare 1 “ OCF1_A “ “ “ Input Capture 2 “ ICF2_A “ “ “ Output Compare 2 “ OCF2_A “ “ “ Timer Overflow “ TOF_A “ I5 FFF2h-FFF 3h RDS Block Interrupt. RDS GRP VSI CNI GBS I6 FFF0h-FFF 1h Input Capture 1 Timer B Status ICF1_B TIMER_B “ “ Output Compare 1 “ OCF1_B “ “ “ Input Capture 2 “ ICF2_B “ “ “ Output Compare 2 “ OCF2_B “ “ “ Timer Overflow “ TOF_B “ I7 FFEEh-FFEFh Transfer Complete SPI B Status SPIF2_B SPI_B “ “ Mode Fault “ MODF1_B “ I8 FFECh-FFEDh Transmit Buffer Empty SCI Status TDRE SCI “ “ Transmit Complete “ TC “ “ “ Receive Buffer Full “ RDRF “ “ “ Idle Line Detect “ IDLE “ “ “ Overrun “ OR “ I9 FFEAh-FFE Bh Ext. Interrupt (Ports D4,D5) N/A N/A INT9 I10 FFE8h-FFE9h Ext. Interrupt (Port C4, C5) N/A N/A INT10 I11 FFE6h-FFE7h Byte Transmission Finished I2C Status BTF I2C “ “ Bus Error “ BERR I2C “ “ Stop Detection “ SSTOP I2C |
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