17 debug ac timing specifications, 17debug ac timing specifications -27 – Motorola ColdFire MCF5281 User Manual
Page 711

Electrical Characteristics
Freescale Semiconductor
33-27
Figure 33-19. TRST Timing
Figure 33-20. BKPT Timing
33.17 Debug AC Timing Specifications
lists specifications for the debug AC timing parameters shown in
shows real-time trace timing for the values in
.
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