CP3UB17G38 NSC [National Semiconductor], CP3UB17G38 Datasheet - Page 177

• Manufacturer Part Number: CP3UB17G38
• Description: CP3UB17 Reprogrammable Connectivity Processor with USB Interface
• Manufacturer: NSC [National Semiconductor]

26.7
Symbol Figure
t
t
COv1
TXD
t
t
Is
Ih
UART TIMING
60
60
60
60
Input setup time
RXD (asynchronous mode)
Input hold time
RXD (asynchronous mode)
TXD output valid (all signals with
propagation delay from CLK RE)
TXD output valid
RXD
CLK
TXD
1
t
lS
Description
2
Figure 60. UART Asynchronous Mode Timing
1
t
COv1
t
lH
2
Table 56 UART Signals
UART Output Signals
UART Input Signals
1
Before Rising Edge (RE)
on CLK
After RE on CLK
After RE on CLK
After RE on CLK
177
2
1
t
Reference
COv1
2
1
2
Min (ns)
1
-
-
DS098
2
www.national.com
Max (ns)
40
-
-