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9202 数据表(PDF) 43 Page - STMicroelectronics |
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9202 数据表(HTML) 43 Page - STMicroelectronics |
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43 / 175 page  43/175 UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV Table 21. Description of the IEA Bits Table 22. Description of the IP Bits Table 23. Description of the IPA Bits Bit Symbol Function 7 EDDC Enable DDC Interrupt 6 — Not used 5 — Not used 4 ES2 Enable 2nd USART Interrupt 3 — Not used 2 — Not used 1 EI2C Enable I²C Interrupt 0 EUSB Enable USB Interrupt Bit Symbol Function 7 — Reserved 6 — Reserved 5 PT2 Timer 2 Interrupt priority level 4 PS USART Interrupt priority level 3 PT1 Timer 1 Interrupt priority level 2 PX1 External Interrupt (Int1) priority level 1 PT0 Timer 0 Interrupt priority level 0 PX0 External Interrupt (Int0) priority level Bit Symbol Function 7 PDDC DDC Interrupt priority level 6 — Not used 5 — Not used 4 PS2 2nd USART Interrupt priority level 3 — Not used 2 — Not used 1 PI2C I²C Interrupt priority level 0 PUSB USB Interrupt priority level |
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