MCF5373CAB180 datasheet(36/46 Pages) NXP

36 / 46 page

MCF537x ColdFire® Microprocessor Data Sheet, Rev. 4

Current Consumption

Freescale Semiconductor

5.17

Debug AC Timing Specifications

Table 25 lists specifications for the debug AC timing parameters shown in Figure 27.

Figure 27. Real-Time Trace AC Timing

Figure 28. BDM Serial Port AC Timing

Current Consumption

All current consumption data is lab data measured on a single device using an evaluation board. Table 26 shows the typical

power consumption in low-power modes. These current measurements are taken after executing a STOP instruction.

Table 25. Debug AC Timing Specification

Num

Characteristic

Min

Max

Units

PSTCLK cycle time

tSYS = 1/fSYS

PSTCLK rising to PSTDDATA valid

—

3.0

PSTCLK rising to PSTDDATA invalid

1.5

—

DSI-to-DSCLK setup

—

PSTCLK

D41

1 DSCLK and DSI are synchronized internally. D4 is measured from the synchronized

DSCLK input relative to the rising edge of PSTCLK.

DSCLK-to-DSO hold

—

PSTCLK

DSCLK cycle time

—

PSTCLK

BKPT assertion time

—

PSTCLK

PSTDDATA[7:0]

Past

Current

DSCLK

DSI

DSO

Current

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