MCF52235 datasheet(46/54 Pages) FREESCALE

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MCF52235 ColdFire Microcontroller Data Sheet, Rev. 7

Electrical Characteristics

Freescale Semiconductor

2.14

Debug AC Timing Specifications

Table 40 lists specifications for the debug AC timing parameters shown in Figure 19.

Figure 18 shows real-time trace timing for the values in Table 40.

Figure 18. Real-Time Trace AC Timing

Figure 19 shows BDM serial port AC timing for the values in Table 40.

Figure 19. BDM Serial Port AC Timing

Table 40. Debug AC Timing Specification

Num

Characteristic

60 MHz

Units

Min

Max

PST, DDATA to CLKOUT setup

—

CLKOUT to PST, DDATA hold

1.5

—

DSI-to-DSCLK setup

× t

CYC

—ns

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

× t

CYC

—ns

DSCLK cycle time

× t

CYC

—ns

BKPT input data setup time to CLKOUT Rise

—

BKPT input data hold time to CLKOUT Rise

1.5

—

CLKOUT high to BKPT high Z

0.0

10.0

CLKOUT

PST[3:0]

DDATA[3:0]

DSI

DSO

Current

CLKOUT

Past

Current

DSCLK

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