mcf5307cft90b Freescale Semiconductor, Inc, mcf5307cft90b Datasheet - Page 148

• Manufacturer Part Number: mcf5307cft90b
• Description: Mcf5307 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

1
2
Read A/D
register
Write A/D
register
Read
memory
location
Write
memory
location
Dump
memory
block
Fill memory
block
Resume
execution
No operation
Output the
current PC
Read control
register
Write control
register
Read debug
module
register
Write debug
module
register
Background Debug Mode (BDM)
Unassigned command opcodes are reserved by Motorola. All unused command formats
within any revision level perform a
5.5.3.1 ColdFire BDM Command Format
All ColdFire Family BDM commands include a 16-bit operation word followed by an
optional set of one or more extension words, as shown in Figure 5-16.
Command
5-20
General command effect and/or requirements on CPU operation:
- Halted. The CPU must be halted to perform this command.
- Steal. Command generates bus cycles that can be interleaved with bus accesses.
- Parallel. Command is executed in parallel with CPU activity.
0x4 is a three-bit field.
RAREG
RDREG
WAREG
WDREG
READ
WRITE
DUMP
FILL
GO
NOP
SYNC
RCREG
WCREG
RDMREG
WDMREG
Mnemonic
_
PC
/
/
Read the selected address or data register and
return the results through the serial interface.
Write the data operand to the specified address or
data register.
Read the data at the memory location specified by
the longword address.
Write the operand data to the memory location
specified by the longword address.
Used with
An initial
address of the block and to retrieve the first result.
A
Used with
initial
address of the block and to supply the first operand.
A
The pipeline is flushed and refilled before resuming
instruction execution at the current PC.
Perform no operation; may be used as a null
command.
Capture the current PC and display it on the
PST/DDATA output pins.
Read the system control register.
Write the operand data to the system control
register.
Read the debug module register.
Write the operand data to the debug module
register.
DUMP
FILL
Freescale Semiconductor, Inc.
Table 5-17. BDM Command Summary
WRITE
command writes subsequent operands.
For More Information On This Product,
command retrieves subsequent operands.
READ
READ
WRITE
is executed to set up the starting
is executed to set up the starting
to dump large blocks of memory.
Go to: www.freescale.com
to fill large blocks of memory. An
MCF5307 User’s Manual
Description
NOP
and return the illegal command response.
Parallel
Parallel
Parallel
Parallel
State
Halted
Halted
Halted
Halted
Halted
Steal
Steal
Steal
Steal
CPU
1
5.5.3.3.10 0x2980
5.5.3.3.11 0x2880
5.5.3.3.12 0x2D {0x4
5.5.3.3.13 0x2C {0x4
5.5.3.3.1 0x218 {A/D,
5.5.3.3.2 0x208 {A/D,
5.5.3.3.3 0x1900—byte
5.5.3.3.4 0x1800—byte
5.5.3.3.5 0x1D00—byte
5.5.3.3.6 0x1C00—byte
5.5.3.3.7 0x0C00
5.5.3.3.8 0x0000
5.5.3.3.9 0x0001
Section
Reg[2:0]}
Reg[2:0]}
0x1940—word
0x1980—lword
0x1840—word
0x1880—lword
0x1D40—word
0x1D80—lword
0x1C40—word
0x1C80—lword
DRc[4:0]}
Drc[4:0]}
Command
(Hex)
2
2