CP3BT26 Datasheet, PDF (249/278 Pages) National Semiconductor (TI) – Reprogrammable Connectivity Processor with Bluetooth-R, USB, and CAN Interfaces

30.8 UART TIMING
Table 85 UART Signals
Symbol Figure
Description
t_CKX
t_RXS
t_RXH
114
CKX period
(synchronous mode)
114
RXD setup time
(synchronous mode)
114
RXD hold time
(synchronous mode)
t_TXD
114
TXD output valid
(synchronous mode)
Reference
UART Input Signals
Before Falling Edge (FE)
on CKX
Before FE on CKX
UART Output Signals
After Rising Edge (RE) on
CKX
Min (ns)
250
40
40
-
Max (ns)
-
-
-
40
CKX
t_CKX
TXD
t_TXD
t_RXS
RXD
t_RXH
DS099
Figure 114. UART Synchronous Mode Timing
249
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