USING THE OnCE
10- 24
ON-CHIP EMULATION (OnCE)
MOTOROLA
troller releases the chip from the debug mode and the instruction starts execution.
The signal that marks the end of the instruction returns the chip to the debug mode.
15. ACK
16. Send command WRITE PDB REGISTER, GO, no EX (01001001)
The OnCE controller selects PDB as destination for serial data.
17. ACK
18. Send the 24-bit DSP56K opcode: “MOVE X:(R0)+,x:OGDB”
After 24 bits have been received, the PDB register drives the PDB. The OnCE con-
troller releases the chip from the debug mode and the contents of X:(R0) are
loaded in the GDB REGISTER. The signal that marks the end of the instruction re-
turns the chip to the debug mode.
19. ACK
20. Send command READ GDB REGISTER (10001000)
The OnCE controller selects GDB as source for serial data.
21. ACK
22. CLK
23. Send command NO REGISTER SELECTED, GO, no EX (01011111)
The OnCE controller releases the chip from the debug mode and the instruction is
executed again in a “REPEAT-like” fashion. The signal that marks the end of the
instruction returns the chip to the debug mode.
24. ACK
25. Send command READ GDB REGISTER (10001000)
The OnCE controller selects GDB as source for serial data.
26. ACK
27. CLK
28. Repeat from step 23 until the entire memory area is examined.
29. After finishing reading the memory, R0 should to be restored as follows.
30. Send command WRITE PDB REGISTER, no GO, no EX (00001001)
OnCE controller selects PDB as destination for serial data.
31. ACK
32. Send the 24-bit DSP56K opcode: “MOVE #saved_r0,R0”
After 24 bits have been received, the PDB register drives the PDB. The OnCE con-
Summary of Contents for DSP56K
Page 12: ...xii LIST of TABLES MOTOROLA List of Tables Continued Table Page Number Title Number ...
Page 13: ...MOTOROLA DSP56K FAMILY INTRODUCTION 1 1 SECTION 1 DSP56K FAMILY INTRODUCTION ...
Page 31: ...MOTOROLA DATA ARITHMETIC LOGIC UNIT 3 1 SECTION 3 DATA ARITHMETIC LOGIC UNIT ...
Page 50: ...DATA ALU SUMMARY 3 20 DATA ARITHMETIC LOGIC UNIT MOTOROLA ...
Page 51: ...MOTOROLA ADDRESS GENERATION UNIT 4 1 SECTION 4 ADDRESS GENERATION UNIT ...
Page 77: ...MOTOROLA PROGRAM CONTROL UNIT 5 1 SECTION 5 PROGRAM CONTROL UNIT ...
Page 124: ...INSTRUCTION GROUPS 6 30 INSTRUCTION SET INTRODUCTION MOTOROLA ...
Page 125: ...MOTOROLA PROCESSING STATES 7 1 SECTION 7 PROCESSING STATES STOP WAIT EXCEPTION NORMAL RESET ...
Page 167: ...STOP PROCESSING STATE MOTOROLA PROCESSING STATES 7 43 ...
Page 168: ...STOP PROCESSING STATE 7 44 PROCESSING STATES MOTOROLA ...
Page 169: ...MOTOROLA PORT A 8 1 SECTION 8 PORT A ...
Page 176: ...PORT A INTERFACE 8 8 PORT A MOTOROLA ...
Page 177: ...MOTOROLA PLL CLOCK OSCILLATOR 9 1 SECTION 9 PLL CLOCK OSCILLATOR x x d Φ VCO ...
Page 191: ...10 2 ON CHIP EMULATION OnCE MOTOROLA SECTION 10 ON CHIP EMULATION OnCE ...
Page 218: ...USING THE OnCE MOTOROLA ON CHIP EMULATION OnCE 10 29 ...
Page 604: ...INSTRUCTION ENCODING A 338 INSTRUCTION SET DETAILS MOTOROLA ...
Page 605: ...MOTOROLA BENCHMARK PROGRAMS B 1 APPENDIX B BENCHMARK PROGRAMS T T T T T P1 P3 P2 P4 T T T ...
Page 609: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 5 ...
Page 611: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 7 ...
Page 613: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 9 ...
Page 615: ...BENCHMARK PROGRAMS MOTOROLA BENCHMARK PROGRAMS B 11 ...