Table of Contents
Paragraph
Number
5.5.4.1
5.5.4.2
5.5.4.3
5.6
5.6.1
5.6.1.1
5.6.1.2
5.6.1.3
5.6.2
5.6.2.1
5.6.2.2
5.6.2.2.1
5.6.2.2.2
5.6.2.2.3
5.6.2.3
5.6.2.4
5.6.2.5
5.6.2.5.1
5.6.2.5.2
5.6.2.5.3
5.6.2.6
5.6.2.7
5.6.2.7.1
5.6.2.7.2
5.6.2.8
5.6.2.8.1
5.6.2.8.2
5.6.2.8.3
5.6.2.8.4
5.6.2.8.5
5.6.2.8.6
5.6.2.8.7
5.6.2.8.8
5.6.2.8.9
5.6.2.8.10
5.6.2.8.11
5.6.2.8.12
5.6.2.8.13
5.6.2.8.14
5.6.2.8.15
5.6.2.8.16
5.6.3
5.6.3.1
5.6.3.2
5.6.3.3
Title
Page
Number
vi
MC68360 USER’S MANUAL
MOTOROLA
Four-Word Stack Frame ........................................................................5-56
Six-Word Stack Frame...........................................................................5-56
Bus Error Stack Frame ..........................................................................5-56
Development Support............................................................................5-59
CPU32+ Integrated Development Support ............................................5-59
Background Debug Mode (BDM) Overview...........................................5-59
Deterministic Opcode Tracking Overview..............................................5-60
On-Chip Hardware Breakpoint Overview...............................................5-60
Background Debug Mode......................................................................5-60
Enabling BDM........................................................................................5-60
BDM Sources.........................................................................................5-61
External BKPT Signal ............................................................................5-62
BGND Instruction...................................................................................5-62
Double Bus Fault ...................................................................................5-62
Entering BDM.........................................................................................5-62
Command Execution..............................................................................5-62
BDM Registers.......................................................................................5-63
Fault Address Register (FAR)................................................................5-63
Return Program Counter (RPC).............................................................5-63
Current Instruction Program Counter (PCC)..........................................5-63
Returning from BDM..............................................................................5-63
Serial Interface.......................................................................................5-63
CPU Serial Logic....................................................................................5-65
Development System Serial Logic.........................................................5-66
Command Set........................................................................................5-68
Command Format..................................................................................5-68
Command Sequence Diagram...............................................................5-69
Command Set Summary........................................................................5-69
Read A/D Register (RAREG/RDREG)...................................................5-71
Write A/D Register (WAREG/WDREG) .................................................5-71
Read System Register (RSREG)...........................................................5-71
Write System Register (WSREG) ..........................................................5-72
Read Memory Location (READ) ............................................................5-73
Write Memory Location (WRITE)...........................................................5-74
Dump Memory Block (DUMP)................................................................5-75
Fill Memory Block (FILL)........................................................................5-76
Resume Execution (GO)........................................................................5-77
Call User Code (CALL)..........................................................................5-77
Reset Peripherals (RST)........................................................................5-79
No Operation (NOP) ..............................................................................5-79
Future Commands.................................................................................5-80
Deterministic Opcode Tracking..............................................................5-80
Instruction Fetch (IFETCH)....................................................................5-80
Instruction Pipe (IPIPE1–IPIPE0) ..........................................................5-80
Opcode Tracking during Loop Mode......................................................5-82