Specifications

Si2457/Si2434/Si2415
8 Rev. 0.91
Figure 2. Asynchronous UART Serial Interface Timing Diagram
UART Time for Modem Receive Path (8N1 Mode)
UART Timing for Modem Transmit Path (9N1 Mode with 9th Bit Escape)
8-Bit Data
Mode
D0 D1 D2 D3 D4 D5 D6 D7
D0 D1 D2 D3 D4 D5 D6 ESCD7
Stop
Stop
Start
Start
t
RTS
t
RTH
RTS
CTS
RX
TX
t
RTS
t
CTH
9-Bit Data
Mode