Datasheet

Electrical Characteristics
Freescale Semiconductor 33-27
Figure 33-19. TRST Timing
Figure 33-20. BKPT Timing
33.17 Debug AC Timing Specifications
Table 33-28 lists specifications for the debug AC timing parameters shown in Figure 33-22.
Figure 33-21 shows real-time trace timing for the values in Table 33-28.
Table 33-28. Debug AC Timing Specification
Num Characteristic Min Max Units
D1 PST, DDATA to TCLK setup 5 ns
D2 TCLK to PST, DDATA hold 2 ns
D3
DSI-to-DSCLK setup 1 CLKOUT
cycles
D4
1
1
DSCLK and DSI are synchronized internally. D4 is measured from the
synchronized DSCLK input relative to the rising edge of CLKOUT.
DSCLK-to-DSO hold 4 CLKOUT
cycles
D5 DSCLK cycle time 5 CLKOUT
cycles
D6 BKPT
input data setup time to
CLKOUT Rise
5.0 ns
D7 BKPT
input data hold time to
CLKOUT Rise
2.0 ns
D8 CLKOUT high to BKPT
high Z 0.0 10.0 ns
TCLK
TRST
14
13
Input Data Valid
CLKOUT
BKPT
(Input)
V
IL
V
IH
15 16
B1b
B2b
17
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3