
2.5.8
UART Timing
Table 22. UART Timing
No.
400
401
402
Characteristics
URXD and UTXD inputs high/low duration
URXD and UTXD inputs rise/fall time
UTXD output rise/fall time
Expression
16 × T REFCLK
Min
160.0
Max
—
10
10
Unit
ns
ns
ns
UTXD, URXD
inputs
401
400
401
400
Figure 20. UART Input Timing
402
402
UTXD output
Figure 21. UART Output Timing
MSC8122 Quad Digital Signal Processor Data Sheet, Rev. 16
Freescale Semiconductor
33