mcf5407 Freescale Semiconductor, Inc, mcf5407 Datasheet - Page 188

• Manufacturer Part Number: mcf5407
• Description: Mcf5407 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

Background Debug Mode (BDM)
5.5.3.3.3 Read Memory Location (
Read data at the longword address. Address space is defined by BAAR[TT,TM]. Hardware
forces low-order address bits to zeros for word and longword accesses to ensure that word
addresses are word-aligned and longword addresses are longword-aligned.
Command/Result Formats:
Command Sequence:
Operand Data
Result Data
Longword Command
5-32
Word
Byte
READ (B/W)
READ (LONG)
???
???
Command
Command
Result
Result
Result
15
X
"NOT READY"
"NOT READY"
MS ADDR
MS ADDR
Figure 5-24.
The only operand is the longword address of the requested location.
Word results return 16 bits of data; longword results return 32. Bytes
are returned in the LSB of a word result, the upper byte is undefined.
0x0001 (S = 1) is returned if a bus error occurs.
X
Figure 5-25.
0x1
0x1
0x1
X
12
X
"NOT READY"
"NOT READY"
READ
MCF5407 User’s Manual
LS ADDR
LS ADDR
11
X
READ
Command/Result Formats
READ
X
Command Sequence
0x9
0x9
0x9
X
LOCATION
LOCATION
MEMORY
MEMORY
)
READ
READ
A[31:16]
A[31:16]
A[31:16]
D[31:16]
X
A[15:0]
A[15:0]
D[15:0]
A[15:0]
D[15:0]
8
7
0x0
0x4
0x8
"NOT READY"
"NOT READY"
MS RESULT
NEXT CMD
RESULT
BERR
BERR
XXX
XXX
XXX
XXX
XXX
XXX
XXX
4
D[7:0]
3
"NOT READY"
"NOT READY"
LS RESULT
NEXT CMD
NEXT CMD
NEXT CMD
0x0
0x0
0x0
0