Chapter 21 debug support and jtag interface – Freescale Semiconductor MPC5200B User Manual

Page 19

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Table Of Contents

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Page

Number

Number

MPC5200B Users Guide, Rev. 1

TOC-18

Freescale Semiconductor

20.8.8.1

Transmitting Or Receiving A Block Mode Message ...............................................................................20-45

20.8.8.2

Transmitting Or Receiving A Message In 4X Mode ................................................................................20-46

20.8.9

BDLC Module Initialization ..........................................................................................................................20-47

20.8.9.1

Initialization Sequence .............................................................................................................................20-47

20.8.9.2

Initializing the Configuration Bits ............................................................................................................20-48

20.8.9.3

Exiting Loopback Mode and Enabling the BDLC module ......................................................................20-48

20.8.9.4

Enabling BDLC Interrupts ........................................................................................................................20-48

20.9

Resets .....................................................................................................................................................................20-50

20.9.1

General ............................................................................................................................................................20-50

Chapter 21 Debug Support and JTAG Interface

21.1

Overview .................................................................................................................................................................21-1

21.2

TAP Link Module (TLM) and Slave TAP Implementation ....................................................................................21-1

21.3

TLM and TAP Signal Descriptions .........................................................................................................................21-4

21.3.1

Test Reset (TRST) ............................................................................................................................................21-4

21.3.2

Test Clock (TCK) .............................................................................................................................................21-4

21.3.3

Test Mode Select (TMS) ..................................................................................................................................21-4

21.3.4

Test Data In (TDI) ............................................................................................................................................21-4

21.3.5

Test Data Out (TDO) ........................................................................................................................................21-5

21.4

Slave Test Reset (STRST) ......................................................................................................................................21-5

21.4.1

Enable Slave—ENA[0:n] ................................................................................................................................21-5

21.4.2

Select DR Link—SEL[0:n] .............................................................................................................................21-5

21.4.3

Slave Test Data Out—STDO[0:n] ..................................................................................................................21-5

21.5

TAP State Machines ................................................................................................................................................21-5

21.6

G2_LE Core JTAG/COP Serial Interface ...............................................................................................................21-6

21.7

TLM Link DR Instructions ......................................................................................................................................21-7

21.7.1

TLM:TLMENA ................................................................................................................................................21-8

21.7.2

TLM:PPCENA .................................................................................................................................................21-8

21.8

TLM Test Instructions .............................................................................................................................................21-8

21.8.1

IDCODE ...........................................................................................................................................................21-8

21.8.1.1

Device ID Register .....................................................................................................................................21-8

21.8.2

BYPASS ...........................................................................................................................................................21-8

21.8.3

SAMPLE/PRELOAD .......................................................................................................................................21-8

21.8.4

EXTEST ............................................................................................................................................................21-9

21.8.5

CLAMP .............................................................................................................................................................21-9

21.8.6

HIGHZ ..............................................................................................................................................................21-9

21.9

G2_LE COP/BDM Interface ..................................................................................................................................21-9

Appendix A Acronyms and Terms

Appendix B List of Registers

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