User's Manual

Table Of Contents
Document Number: 002-19043 Rev. PRELIMINARY Page 23 of 33
PRELIMINARY
CYBLE-413136-01
Timing and AC Characteristics
In this section, use the numbers listed in the Reference column of each table to interpret the following timing diagrams.
UART Timing
Figure 11. UART Timing
Table 18. UART Timing Specifications
Reference Characteristics Min. Typ. Max. Unit
1 Delay time, UART_CTS_N low to UART_TXD valid. 1.50 Bit periods
2 Setup time, UART_CTS_N high before midpoint of stop bit. 0.67 Bit periods
3 Delay time, midpoint of stop bit to UART_RTS_N high. 1.33 Bit periods