MPC5633MMLL80 datasheet(102/106 Pages) FREESCALE

102 / 106 page

MPC5634M Microcontroller Data Sheet, Rev. 8

Freescale Semiconductor

102

Figure 13. Nexus output timing

9tTCYC

TCK Cycle Time

46,7

—tCYC

tTCYC

Absolute Minimum TCK Cycle Time

1008

—ns

tTDC

TCK Duty Cycle

tNTDIS

TDI Data Setup Time

—

tNTDIH

TDI Data Hold Time

—

tNTMSS

TMS Data Setup Time

—

tNTMSH

TMS Data Hold Time

—

tJOV

TCK Low to TDO Data Valid

1 All Nexus timing relative to MCKO is measured from 50% of MCKO and 50% of the respective signal. Nexus timing

specified at VDD = 1.14 V to 1.32 V, VDDEH = 4.5 V to 5.25 V with multi-voltage pads programmed to Low-Swing

mode, TA = TL to TH, and CL = 30 pF with DSC = 0b10.

2 Achieving the absolute minimum MCKO cycle time may require setting the MCKO divider to more than its minimum

setting (NPC_PCR[MCKO_DIV] depending on the actual system frequency being used.

3 This is a functionally allowable feature. However, this may be limited by the maximum frequency specified by the

Absolute minimum MCKO period specification.

4 This may require setting the MCKO divider to more than its minimum setting (NPC_PCR[MCKO_DIV]) depending

on the actual system frequency being used.

5 MDO, MSEO, and EVTO data is held valid until next MCKO low cycle.

6 Achieving the absolute minimum TCK cycle time may require a maximum clock speed (system frequency / 8) that

is less than the maximum functional capability of the design (system frequency / 4) depending on the actual system

frequency being used.

7 This is a functionally allowable feature. However, this may be limited by the maximum frequency specified by the

Absolute minimum TCK period specification.

8 This may require a maximum clock speed (system frequency / 8) that is less than the maximum functional capability

of the design (system frequency / 4) depending on the actual system frequency being used.

Table 34. Nexus debug port timing1 (continued)

Symbol

Characteristic

Min. Value Max. Value

Unit

MCKO

MDO

MSEO

EVTO

Output Data Valid

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