User Manual

Bluetooth 4.0 BLE Module
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2.3 Timing and AC Charactristics
In this section, use the numbers listed in the Reference column of each table to interpret the following timing
diagrams.
UART T iming
Table 7: UART Timing Specifications
Reference
Characteristics
Min
Max
Unit
1
Delay time, UART_CTS_N low to UART_TXD valid
–
24
Baud out
cycles
2
Setup time, UART_CTS_N high before midpoint of stop
bit
–
10
ns
3
Delay time, midpoint of stop bit to UART_RTS_N high
–
2
Baud out
cycles
Figure 6: UART Timing