21
21-2
Rev.1.0
21.1 Outline of the JTAG
The 32172/32173 contains a JTAG (Joint Test Action Group) interface based on IEEE Standard
Test Access Port and Boundary-Scan Architecture (IEEE Std. 1149.1a-1993). This JTAG interface
can be used as an input/output path for boundary-scan test (boundary-scan path). For details about
IEEE 1149.1 JTAG test access ports, refer to the IEEE Std. 1149.1a-1993 documentation.
The functions of JTAG interface related pins mounted on the 32172/32173 are shown below.
Table 21.1.1 JTAG Pin Functions
Type
Symbol
Pin Name
I/O
Function
TAP
JTCK
Test clock
Input
Clock input to the test circuit.
JTDI
Test data input
Input
Synchronous serial data input pin used to enter test
instruction code and test data. This input is sampled on
rising edges of JTCK.
JTDO
Test data output
output
Synchronous serial data output pin used to output test
instruction code and test data. This signal changes state on
falling edges of JTCK, and is output only in Shift-IR or Shift-
DR state.
JTMS
Test mode select
Input
Test mode select input to control the test circuit's state
transitions. This input is sampled on rising edges of JTCK.
JTRST
Test reset
Input
Active-low test reset input to initialize the test circuit
asynchronously. To ensure that the test circuit is reset
without fail, JTMS signal input must be held high while this
signal changes state from low to high.
Note: TAP = Test Access Port, a JTAG interface stipulated in IEEE 1149.1.
JTAG
21.1 Outline of the JTAG
(Note)
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...