mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 506

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Debug AC Timing Specifications
23.4 Debug AC Timing Specifications
Table 23-9 lists specifications for the debug AC timing parameters shown in Figure 23-8.
Figure 23-7 shows real-time trace timing for the values in Table 23-9.
Figure 23-8 shows BDM serial port AC timing for the values in Table 23-9.
PSTCLK
23-12
DSCLK
DSO
DSI
1
D1
D2
D3
D4
D5
Num
DSCLK and DSI are synchronized internally. D4 is measured from the
synchronized DSCLK input relative to the rising edge of PSTCLK.
D3
1
PST[3:0], DDATA[3:0] to PSTCLK valid
PSTCLK to PST[3:0], DDATA[3:0] hold
DSI-to-DSCLK setup
DSCLK-to-DSO hold
DSCLK cycle time
Table 23-9. Debug AC Timing Specification
PST[3:0], DDATA[3:0]
Figure 23-7. Real-Time Trace AC Timing
Figure 23-8. BDM Serial Port AC Timing
Current
Characteristic
PSTCLK
Past
MCF5272 User’s Manual
D4
D5
Min
—
1
1
4
5
0-66 MHz
Max
8.5
D1
—
—
—
—
D2
PSTCLKs
PSTCLKs
PSTCLKs
Units
Next
nS
nS
Current
MOTOROLA