Idle state色色 Dr knees. Odd or even w o Remain idle o lAn of line b ig ac parity or unused ai next start bit 5 to 8 data bits I to 2 bit time Start I Stop bit element bit (a) Character format Unpredicatable time interval 界积 between characters Stop Stop Start element Start bit s element ↓ 11010001 01101。10 to nL-luartib simd s a s(b)8-bit asynchronous character stream vins ni won 120m 1 50(150250350450550650750850 Transmitter timing(s) 应 ↓-↓↓↓-↓↓↓↓ Fs。 ↑↑个个↑↑↑↑↑ 471412353294235176117057 Receiver timing (us) Der: (e) Effect of timing error s006 Figure 6.1 Aynchronous Transmission网络通信 4