mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 495

• Manufacturer Part Number: mcf5407
• Description: Mcf5407 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

20.8 UART Module AC Timing Specifications
Table 20-13 lists specifications for UART module AC timing parameters in Figure 20-19.
Figure 20-19 shows UART0 and UART1 timing for the values in Table 20-13.
SDA
SCL
U1
U2
U3
U4
U5
U6
U7
U8
U9
U10
U11
U12
U13
U14
U15
U16
U17
Num
Table 20-13. UART Module AC Timing Specifications
I1
RXD valid to CLKIN (input setup)
CLKIN to RXD invalid (input hold)
CTS valid to CLKIN (input setup)
CLKIN to CTS invalid (input hold)
CLKIN to TXD valid (output valid)
CLKIN to TXD invalid (output hold)
CLKIN to RTS valid (output valid)
CLKIN to RTS invalid (output hold)
CTS high time
CTS low time
CTS rising to TxD valid
RxD setup to CTS falling
RxD hold from CTS falling
TxD to RxD (remote loop back)
TIN1 setup to CTS falling
TIN1 hold from CTS falling
CTS rising to RTS asserted
Figure 20-18. I
I2
Chapter 20. Electrical Specifications
I4
Characteristic
2
C Input/Output Timings
I6
I7
UART Module AC Timing Specifications
54 MHz CLKIN
Min
7.5
1.0
7.5
1.0
1.0
1.0
38
38
10
10
—
—
—
—
—
—
—
I8
Max
10
10
20
15
20
—
—
—
—
—
—
—
—
—
—
5
5
Units
I5
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
I3
I9
20-19