CYW20704
9.2.3 UART Timing
Table 20. UART Timing Specifications
Ref No.
Characteristics
Minimum
Typical
Maximum
Unit
1
2
3
Delay time
UART_CTS_N low to UART TXD valid.
–
–
–
–
–
–
1.50
0.67
1.33
Bit periods
Setup time
Bit periods
Bit periods
UART_CTS_N high before midpoint of stop bit.
Delay time
Midpoint of stop bit to UART_RTS_N high.
Figure 11. UART Timing
UART_CTS_N
1
2
UART_TXD
Midpoint of STOP bit
Midpoint of STOP bit
UART_RXD
3
UART_RTS_N
Document Number: 002-14786 Rev. *E
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