Debug Module
MCF52235 ColdFire® Integrated Microcontroller Reference Manual, Rev. 6
31-8
Freescale Semiconductor
31.3.3
BDM Address Attribute Register (BAAR)
The BAAR register defines the address space for memory-referencing BDM commands. BAAR[R, SZ]
are loaded directly from the BDM command, while the low-order 5 bits can be programmed from the
external development system. To maintain compatibility with revision A, BAAR is loaded any time the
AATR is written. The BAAR is initialized to a value of 0x05, setting supervisor data as the default address
space.
3–2
Reserved, must be cleared.
1
FDBG
Force the debug mode core output signal (to the on-chip peripherals). The debug mode output is logically defined
as:
Debug mode output = CSR[FDBG] | (CSR[DBGH] and Core is halted)
0 Debug mode output is not forced asserted.
1 Debug mode output core output signal is asserted.
0
DBGH
Disable debug signal assertion during core halt. The debug mode output (to the on-chip peripherals) is logically
defined as:
Debug mode output = CSR[FDBG] | (CSR[DBGH] and Core is halted)
0 Debug mode output is asserted when the core is halted.
1 Debug mode output is not asserted when the core is halted.
DRc[4:0]: 0x05 (BAAR)
Access: Supervisor write-only
BDM write-only
7
6
5
4
3
2
1
0
R
W
R
SZ
TT
TM
Reset:
0
0
0
0
0
1
0
1
Figure 31-3. BDM Address Attribute Register (BAAR)
Table 31-6. BAAR Field Descriptions
Field
Description
7
R
Read/Write.
0 Write
1 Read
6–5
SZ
Size.
00 Longword
01 Byte
10 Word
11 Reserved
4–3
TT
Transfer Type. See the TT definition in the AATR description,
Section 31.3.4, “Address Attribute Trigger Register
.
2–0
TM
Transfer Modifier. See the TM definition in the AATR description,
Section 31.3.4, “Address Attribute Trigger Register
.
Table 31-5. CSR Field Descriptions (continued)
Field
Description
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
