Chapter 21 debug support and jtag interface – Freescale Semiconductor MPC5200B User Manual
Page 19
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Table Of Contents
Paragraph
Page
Number
Number
MPC5200B Users Guide, Rev. 1
TOC-18
Freescale Semiconductor
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