MCF5272VF66J Datasheet, PDF (497/544 Pages) Freescale Semiconductor, Inc – MCF5272 ColdFire® Integrated Microprocessor

Electrical Characteristics
23.4 Debug AC Timing Specifications
Table 23-9 lists specifications for the debug AC timing parameters shown in Figure 23-8.
Table 23-9. Debug AC Timing Specification
Num
Characteristic
0-66 MHz
Min Max
Units
D1
PST[3:0], DDATA[3:0] to PSTCLK valid
—
8.5
nS
D2
PSTCLK to PST[3:0], DDATA[3:0] hold
1
—
nS
D3
D4 ¹
DSI-to-DSCLK setup
DSCLK-to-DSO hold
1
—
PSTCLKs
4
—
PSTCLKs
D5
DSCLK cycle time
5
—
PSTCLKs
1 _{DSCLK and DSI are synchronized internally. D4 is measured from the synchronized DSCLK input relative to the rising edge}
of PSTCLK.
Figure 23-7 shows real-time trace timing for the values in Table 23-9.
PSTCLK
D1
D2
PST[3:0], DDATA[3:0]
Figure 23-7. Real-Time Trace AC Timing
Figure 23-8 shows BDM serial port AC timing for the values in Table 23-9.
PSTCLK
DSCLK
D3
DSI
DSO
D5
Current
D4
Past
Figure 23-8. BDM Serial Port AC Timing
Next
Current
MCF5272 ColdFire^® Integrated Microprocessor User’s Manual, Rev. 3
Freescale Semiconductor
23-13