两种错误: The last sampled bit is incorrectly received The bit count may now be out ofalignment If bit 7 is a l and bit 8 is ao. bit 8 could be mistaken for a start bit. this condition is termed a framing error (组帧错误), as the character plus start bit and stop element are sometimes referred to as a frame. a frame error can also occur if some noise condition causes the false appearance of a start bit during the idle state 网络通信 7网络通信 7 • 两种错误： – The last sampled bit is incorrectly received. – The bit count may now be out of alignment. If bit 7 is a 1 and bit 8 is a 0, bit 8 could be mistaken for a start bit. This condition is termed a framing error（组帧错误）, as the character plus start bit and stop element are sometimes referred to as a frame. A frame error can also occur if some noise condition causes the false appearance of a start bit during the idle state