Datasheet

5-34 MCF5407 User’s Manual
Background Debug Mode (BDM)
Command Sequence:
Figure 5-27. WRITE Command Sequence
Operand Data This two-operand instruction requires a longword absolute address
that specifies a location to which the data operand is to be written.
Byte data is sent as a 16-bit word, justified in the LSB; 16- and 32-bit
operands are sent as 16 and 32 bits, respectively
Result Data Command complete status is indicated by returning 0xFFFF (with S
cleared) when the register write is complete. A value of 0x0001 (with
S set) is returned if a bus error occurs.
MS ADDR
"NOT READY"
LS ADDR
"NOT READY"
WRITE (B/W)
???
NEXT CMD
"NOT READY"
XXX
"NOT READY"
XXX
XXX
BERR
"CMD COMPLETE"
NEXT CMD
WRITE
MEMORY
LOCATION
DATA
"NOT READY"
MS ADDR
"NOT READY"
LS ADDR
"NOT READY"
WRITE (LONG)
???
NEXT CMD
"NOT READY"
XXX
"NOT READY"
XXX
XXX
BERR
"CMD COMPLETE"
NEXT CMD
WRITE
MEMORY
LOCATION
MS DATA
"NOT READY"
LS DATA
"NOT READY"