19
19-13
JTAG
32180 Group User's Manual (Rev.1.0)
M32R/ECU
JTDI
JTMS
JTCK
JTRST
User board
When JTAG tool
is connected
Make sure wiring lengths are the same, and avoid bending wires as much as possible.
Be careful not to use through-holes within the wiring.
JTDO
33
Ω
33
Ω
VCCE(5V)
33
Ω
33
Ω
2K
Ω
10K
Ω
10K
Ω
0.1µF
SDI connector (JTAG connector)
Power
TDI
TMS
TCK
TRST
TDO
GND
Note 1: The RESET# related circuit and resistance-capacitance values must be determined
depending on the user board's system design conditions and the microcomputer's operating conditions.
Note 2: N-channel open-drain output is recommended for the RESET output of JTAG tools. For details, see JTAG tool specifications.
Notes: • Only if the JTRST pin is firmly tied to ground, the JTDO, JTDI, JTMS and JTCLK pins can be processed by either pullup or pulldown.
• Each of these pins must always be processed even when not using JTAG tools.
The same pullup/pulldown resistance values as when using JTAG tools may be used.
RESET#
(Note 1)
RESET
(Note 2)
33
Ω
10K
Ω
VSS
33
Ω
10K
Ω
10K
Ω
10K
Ω
33
Ω
GND
33
Ω
33
Ω
33
Ω
33
Ω
DBI
TRCLK
TRSYNC
TRDATA[0:7]
EVENT[0:1]
SDI trace
power supply
When an emulator
is connected
DBI
TRCLK
TRSYNC
TRDATA0–TRDATA7
EVENT0, EVENT1
SDIVCC
8
2
Figure 19.6.2 Notes on Board Design when Connecting JTAG Tools (for 255FBGA)
19.6 Notes on Board Design when Connecting JTAG
Summary of Contents for M32R/ECU Series
Page 17: ...12 This page is blank for reasons of layout...
Page 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Page 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Page 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Page 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Page 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...