Debug Module
MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor
31-31
Command Sequence:
Figure 31-28.
FILL
Command Sequence
Operand Data:
A single operand is data to be written to the memory location. Byte data is sent as
a 16-bit word, justified in the least-significant byte; 16- and 32-bit operands are
sent as 16 and 32 bits, respectively.
Result Data:
Command complete status (0xFFFF) is returned when the register write is
complete. A value of 0x0001 (with S set) is returned if a bus error occurs.
31.4.1.5.7
Resume Execution (
GO
)
The pipeline is flushed and refilled before normal instruction execution resumes. Prefetching begins at the
current address in the PC and at the current privilege level. If any register (such as the PC or SR) is altered
by a BDM command while the processor is halted, the updated value is used when prefetching resumes.
If a
GO
command issues and the CPU is not halted, the command is ignored.
Command Sequence:
Figure 31-30.
GO
Command Sequence
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0x0
0xC
0x0
0x0
Figure 31-29.
GO
Command Format
XXX
’NOT READY’
FILL (B/W)
???
DATA
’NOT READY’
NEXT CMD
’NOT READY’
WRITE
MEMORY
LOCATION
XXX
BERR
NEXT CMD
’CMD COMPLETE’
XXX
’ILLEGAL’
NEXT CMD
’NOT READY’
XXX
’NOT READY’
FILL (LONG)
???
MS DATA
’NOT READY’
LS DATA
’NOT READY’
WRITE
MEMORY
LOCATION
XXX
BERR
NEXT CMD
’CMD COMPLETE’
XXX
’ILLEGAL’
NEXT CMD
’NOT READY’
NEXT CMD
’NOT READY’
GO
???
NEXT CMD
’CMD COMPLETE’
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:MCF52234CVM60,
MCF52235CVM60
