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数据搜索系统，热门电子元器件搜索 |
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ST72321B 数据表(PDF) 108 Page - STMicroelectronics |
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ST72321B 数据表(HTML) 108 Page - STMicroelectronics |
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108 / 187 page  108/187 SERIAL COMMUNICATIONS INTERFACE (Cont’d) 10.6.5 Low Power Modes 10.6.6 Interrupts The SCI interrupt events are connected to the same interrupt vector. 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/re- ceiving 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 Com- plete TC TCIE Yes No Received Data Ready to be Read RDRF RIE Yes No Overrun Error Detect- ed OR Yes No Idle Line Detected IDLE ILIE Yes No Parity Error PE PIE Yes No |
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