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DIAGNOSTIC FIRMWARE GUIDE
M68CPU32BUG/D REV 1 6-16
MT D Set Bus Data Width MT D
6.5.4 Set Bus Data Width
CPU32Diag>MT D [new value: 0 for 16, 1 for 32]
MT D selects either 16-bit or 32-bit bus data accesses during the M68CPU32Bug MT memory
tests. The width is selected by entering zero for 16 bits or one for 32 bits.
EXAMPLE
If the user supplied the optional new value, then the display appears as follows:
CPU32Diag>MT D [new value]<CR>
Bus Width (32=1/16=0) =<new value>
CPU32Diag>
If a new value was not specified by the user, then the old value is displayed and the user
is allowed to enter a new value.
NOTE
The default value is Bus Width (32=1/16=0) =1.
CPU32Diag>MT D<CR>
Bus Width (32=1/16=0) =<current value> ?[new value]<CR>
Bus Width (32=1/16=0) =<new value>
CPU32Diag>
This command may be used to display the current value without changing it by pressing a
carriage return <CR> without entering the new value.
CPU32Diag>MT D<CR>
Bus Width (32=1/16=0) =<current value> ?<CR>
Bus Width (32=1/16=0) =<current value>
CPU32Diag>
DIAGNOSTIC FIRMWARE GUIDE
M68CPU32BUG/D REV 1 6-13
MT A Set Function Code MT A
6.5.1 Set Function Code
CPU32Diag>MT A [new value]
MT A allows the user to select the function code in most of the memory tests. The exceptions to
this are Program Test and TAS Test.
EXAMPLE
If the user supplied the optional new value, then the display appears as follows:
CPU32Diag>MT A [new value]<CR>
Function Code=<new value>
CPU32Diag>
If a new value was not specified by the user, then the old value is displayed all and the
user is allowed to enter a new value.
NOTE
The default is Function Code=5, which is for on-board RAM.
CPU32Diag>MT A<CR>
Function Code=<current value> ?[new value]<CR>
Function Code=<new value>
CPU32Diag>
This command may be used to display the current value without changing it by pressing a
carriage return <CR> without entering the new value.
CPU32Diag>MT A<CR>
Function Code=<current value> ?<CR>
Function Code=<current value>
CPU32Diag>
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Freescale Semiconductor, Inc.
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- M68CPU32BUG DEBUG MONITOR 1
- USER’S MANUAL 1
- M68CPU32BUG/D 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 3
- LIST OF TABLES 3
- 1.5 SYSTEM RESTART 5
- CHAPTER 1 5
- GENERAL INFORMATION 5
- 1.1 INTRODUCTION 5
- 1.2 GENERAL DESCRIPTION 5
- 1.3 USING THIS MANUAL 6
- 1.6 MEMORY REQUIREMENTS 7
- CHAPTER 2 9
- DEBUG MONITOR DESCRIPTION 9
- 2.1 INTRODUCTION 9
- Freescale Semiconductor, Inc 10
- 2.6 FUNCTION CODE SUPPORT 13
- CHAPTER 3 16
- DEBUG MONITOR COMMANDS 16
- 3.1 INTRODUCTION 16
- BC Block of Memory Compare BC 17
- BF Block of Memory Fill BF 17
- BS Block of Memory Search BS 19
- BM Block of Memory Move BM 19
- BR Breakpoint Insert BR 20
- BV Block of Memory Verify BV 21
- DU Dump S-Records DU 23
- DC Data Conversion DC 23
- GN Go To Next Instruction GN 25
- GO Go Execute User Program GO 27
- HE Help HE 29
- MA Macro Define/Display MA 31
- MAE Macro Edit MAE 33
- MM Memory Modify MM 35
- MD Memory Display MD 36
- MS Memory Set MS 38
- PF Port Format PF 39
- PA Printer Attached PA 40
- RD Register Display RD 41
- RS Register Set RS 43
- RESET Cold/Warm Reset RESET 44
- RM Register Modify RM 44
- T Trace T 45
- SD Switch Directories SD 45
- TM Transparent Mode TM 48
- 4.2SOURCE PROGRAM CODING 51
- CHAPTER 4 52
- ASSEMBLER/DISASSEMBLER 52
- 4.1 INTRODUCTION 52
- 5.2 SYSTEM CALL ROUTINES 57
- CHAPTER 5 58
- SYSTEM CALLS 58
- 5.1 INTRODUCTION 58
- .ERASLN Erase Line .ERASLN 61
- .OUTSTR .OUTSTR 66
- .SNDBRK Send Break .SNDBRK 68
- .TM_RD Read Timer .TM_RD 70
- .WRITELN .WRITELN 71
- .WRITDLN .WRITDLN 71
- 6.3 UTILITIES 73
- CHAPTER 6 73
- DIAGNOSTIC FIRMWARE GUIDE 73
- 6.1 INTRODUCTION 73
- 6.2 DIAGNOSTIC MONITOR 73
- CPU B Instruction Test CPU B 75
- CPU CPU Tests For The MCU CPU 76
- CPU A Register Test CPU A 76
- CPU C Address Mode Test CPU C 77
- MT Memory Tests MT 78
- MT D Set Bus Data Width MT D 79
- MT A Set Function Code MT A 79
- MT B Set Start Address MT B 80
- MT C Set Stop Address MT C 80
- MT H Random Byte Test MT H 81
- MT E March Address Test MT E 81
- MT F Walk a Bit Test MT F 82
- MT G Refresh Test MT G 82
- MT I Program Test MT I 83
- MT J Test and Set Test MT J 84
- BERR Bus Error Test BERR 84
- APPENDIX A 85
- S-RECORD INFORMATION 85
- A.1 INTRODUCTION 85
- A.2 S-RECORD CONTENT 85
- A.3 S-RECORD TYPES 86
- A.4 S-RECORDS CREATION 86
- C.2 CPU32BUG CUSTOMIZATION 87
- APPENDIX B 87
- SELF-TEST ERROR MESSAGES 87
- B.1 INTRODUCTION 87
- APPENDIX C 88
- USER CUSTOMIZATION 88
- C.1 INTRODUCTION 88
- C.3 CUSTOMIZATION TABLE 90
- C.4 COMMUNICATION FORMATS 93
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