MCF5272VF66J Datasheet, PDF (506/544 Pages) Freescale Semiconductor, Inc – MCF5272 ColdFire® Integrated Microprocessor

Electrical Characteristics
23.8 UART Modules AC Timing Specifications
Table 23-16 lists UART AC timings.
Table 23-16. UART Modules AC Timing Specifications
Name
Characteristic ¹
0–66 MHz
Unit
Min
Max
UT1 URTnRxD valid to SDCLK (setup)
6
—
nS
UT2 SDCLK to URTn_RxD invalid (hold)
0
—
nS
UT3 URTn_CTS valid to SDCLK (setup)
6
—
nS
UT4 SDCLK to URTn_CTS invalid (hold)
0
—
nS
UT5 SDCLK to URTn_TxD valid
—
7
nS
UT6 SDCLK to URTn_TxD invalid (output hold)
3
—
nS
UT7 SDCLK to URTn_RTS valid
—
7
nS
UT8 SDCLK to URTn_RTS invalid (output hold)
3
—
nS
1 _{All timing references to SDCLK are given to its rising edge when bit 3 of the SDRAM control register is 0.}
Figure 23-16 shows UART module timings listed in Table 23-16.
SDCLK
UT1
URTn_RxD
UT2
UT3
URTn_CTS
UT4
UT5
URTn_TxD
UT6
UT7
URTn_RTS
UT8
Figure 23-16. UART Timing
23-22
MCF5272 ColdFire^® Integrated Microprocessor User’s Manual, Rev. 3
Freescale Semiconductor