10-4
DSP56309UM/D MOTOROLA
On-Chip Emulation Module
Debug Event (DE)
10.3
DEBUG EVENT (DE)
The bidirectional open drain debug event signal (DE) provides a fast means of entering
debug mode from an external command controller (when input), and a fast means of
acknowledging the entering of debug mode to an external command controller (when
output). The assertion of this signal by a command controller causes the DSP56300 core
to finish the current instruction being executed, save the instruction pipeline
information, enter debug mode, and wait for commands to be entered from the TDI line.
If the DE signal is used to enter debug mode, then it must be deasserted after the OnCE
port responds with an acknowledge and before sending the first OnCE command. The
assertion of this signal by the DSP56300 core indicates that the DSP has entered debug
mode and is waiting for commands to be entered from the TDI line. The DE signal also
facilitates multiple processor connections, as shown in
In this way, the user can stop all the devices in the system when one of the devices enters
debug mode. The user can also stop all the devices synchronously by asserting the DE
line.
10.4
OnCE CONTROLLER
The OnCE controller contains the following blocks: OnCE Command Register (OCR),
OnCE Decoder, and the status/control register.
of the OnCE controller.
Figure 10-2
OnCE Module Multiprocessor Configuration
TDI
TDO
TDI
TDO
TDI
TDO
TDI
TMS
TCK
DE
TDO
TRST
AA0703
Содержание DSP56309
Страница 25: ...xxii DSP56309UM D MOTOROLA Figure D 25 Port E Registers PCRE PRRE PDRE D 39 ...
Страница 30: ...MOTOROLA DSP56309UM D 1 1 SECTION 1 DSP56309 OVERVIEW ...
Страница 47: ...1 18 DSP56309UM D MOTOROLA DSP56309 Overview DSP56309 Architecture Overview ...
Страница 48: ...MOTOROLA DSP56309UM D 2 1 SECTION 2 SIGNAL CONNECTION DESCRIPTIONS ...
Страница 85: ...2 38 DSP56309UM D MOTOROLA Signal Connection Descriptions OnCE JTAG Interface ...
Страница 86: ...MOTOROLA DSP56309UM D 3 1 SECTION 3 MEMORY CONFIGURATION ...
Страница 104: ...MOTOROLA DSP56309UM D 4 1 SECTION 4 CORE CONFIGURATION ...
Страница 124: ...MOTOROLA DSP56309UM D 5 1 SECTION 5 GENERAL PURPOSE I O ...
Страница 125: ...5 2 DSP56309UM D MOTOROLA General Purpose I O 5 1 INTRODUCTION 5 3 5 2 PROGRAMMING MODEL 5 3 ...
Страница 128: ...MOTOROLA DSP56309UM D 6 1 SECTION 6 HOST INTERFACE HI08 ...
Страница 166: ...MOTOROLA DSP56309UM D 7 1 SECTION 7 ENHANCED SYNCHRONOUS SERIAL INTERFACE ESSI ...
Страница 212: ...MOTOROLA DSP56309UM D 8 1 SECTION 8 SERIAL COMMUNICATION INTERFACE SCI ...
Страница 241: ...8 30 DSP56309UM D MOTOROLA Serial Communication Interface SCI GPIO Signals and Registers ...
Страница 242: ...MOTOROLA DSP56309UM D 9 1 SECTION 9 TRIPLE TIMER MODULE ...
Страница 269: ...9 28 DSP56309UM D MOTOROLA Triple Timer Module Timer Operational Modes ...
Страница 270: ...MOTOROLA DSP56309UM D 10 1 SECTION 10 ON CHIP EMULATION MODULE ...
Страница 302: ...MOTOROLA DSP56309UM D 11 1 SECTION 11 JTAG PORT ...
Страница 369: ...C 22 DSP56309UM D MOTOROLA DSP56309 BSDL Listing ...
Страница 370: ...MOTOROLA DSP56309UM D D 1 APPENDIX D PROGRAMMING REFERENCE ...
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