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Background Debug Mode (BDM)
5.5.3.3.5 Dump Memory Block (
is used with the
DUMP
is executed to set up the starting address of the block and to retrieve the first result. If an
initial
is not executed before the first
READ
The
command retrieves subsequent operands. The initial address is incremented by
DUMP
the operand size (1, 2, or 4) and saved in a temporary register. Subsequent
use this address, perform the memory read, increment it by the current operand size, and
store the updated address in the temporary register.
DUMP
only when preceded by
Otherwise, an illegal command response is returned.
be used for intercommand padding without corrupting the
address pointer.
The size field is examined each time a
size to be dynamically altered.
Command/Result Formats:
Byte
Command
Result
Word
Command
Result
Longword Command
Result
5-28
DUMP
command to access large blocks of memory. An initial
READ
does not check for a valid address; it is a valid command
NOP
DUMP
15
12
11
0x1
X
X
X
X
X
0x1
0x1
Figure 5-25.
DUMP
MCF5272 User's Manual
)
, an illegal command response is returned.
DUMP
NOTE:
,
, or another
READ
DUMP
command is processed, allowing the operand
8
7
0xD
X
X
X
0xD
D[15:0]
0xD
D[31:16]
D[15:0]
Command/Result Formats
commands
DUMP
command.
can
NOP
4
3
0x0
0x0
D[7:0]
0x4
0x0
0x8
0x0
READ
0
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