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ST72E331 数据表(PDF) 65 Page - STMicroelectronics |
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ST72E331 数据表(HTML) 65 Page - STMicroelectronics |
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65 / 107 page  65/107 ST72E331 ST72T331 SERIAL COMMUNICATIONS INTERFACE (Cont’d) 5.5.5 Low Power Modes 5.5.6 Interrupts The SCI interrupt events are connected to the same interrupt vector (see Interrupts chapter). These events generate an interrupt if the corre- sponding Enable Control Bit is set and the inter- rupt mask in the CC register is reset (RIM instruc- tion). Mode Description WAIT No effect on SCI. SCI interrupts cause the device to exit from Wait mode. HALT SCI registers are frozen. In Halt mode, the SCI stops transmitting/receiving until Halt mode is exited. Interrupt Event Event Flag Enable Control Bit Exit from Wait Exit from Halt Transmit Data Register Empty TDRE TIE Yes No Transmission Complete TC TCIE Yes No Received Data Ready to be Read RDRF RIE Yes No Overrrun Error Detected OR Yes No Idle Line Detected IDLE ILIE Yes No 65 |
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