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STMPE1801 Datasheet(PDF) 28 Page - STMicroelectronics |
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STMPE1801 Datasheet(HTML) 28 Page - STMicroelectronics |
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28 / 60 page ![]() Interrupt system STMPE1801 28/60 Doc ID 17884 Rev 3 INT_STA Interrupt status register Address: 08, 09 Type: R Reset: 0x00 Description: The interrupt status register monitors the status of the interruption from a particular interrupt source to the host. The INT_STA bits are constantly updated regardless whether the INT_EN bits are enabled or not. 15 14 13 12 11 10 98765 43210 INT_STA_HIGH INT_STA _LOW RESERVED IS4 IS3 IS2 IS1 IS0 R R R R R R RRRRRRRR RR 0 0 0 0 0 0 00000 00001 [15:4] RESERVED [4:0] IS[x] Interrupt status (where x = 3 to 0) Read: IS0: Wake-up interrupt status IS1: Keypad controller interrupt status IS2: Keypad controller FIFO overflow interrupt status IS3: GPIO controller interrupt status IS4: Combination key interrupt status Reading the INT_STA register clears all interrupt status bits to ‘0’ which had been set to ‘1’ prior to the read event. |
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