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Chapter 18 Version 1 ColdFire Debug (CF1_DEBUG)
MCF51QE128 MCU Series Reference Manual, Rev. 3
Freescale Semiconductor 391
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DUMP_MEM.sz_WS Non-Intrusive No (0x33+4 x sz)/d/ss/rd.sz Dump (read) memory based on operand
size (sz) and report status. Used with
READ_MEM{_WS} to dump large blocks of
memory. An initial READ_MEM{_WS} is
executed to set up the starting address of
the block and to retrieve the first result.
Subsequent DUMP_MEM{_WS}
commands retrieve sequential operands.
FILL_MEM.sz Non-Intrusive Yes (0x12+4 x sz)/wd.sz/d Fill (write) memory based on operand size
(sz). Used with WRITE_MEM to fill large
blocks of memory. An initial WRITE_MEM
is executed to set up the starting address of
the block and to write the first operand.
Subsequent FILL_MEM commands write
sequential operands.
FILL_MEM.sz_WS Non-Intrusive No (0x13+4 x sz)/wd.sz/d/ss Fill (write) memory based on operand size
(sz) and report status. Used with
WRITE_MEM{_WS} to fill large blocks of
memory. An initial WRITE_MEM{_WS} is
executed to set up the starting address of
the block and to write the first operand.
Subsequent FILL_MEM{_WS} commands
write sequential operands.
GO Non-Intrusive Yes 0x08/d Resume the CPU’s execution
3
NOP Non-Intrusive Yes 0x00/d No operation
READ_CREG Active
Background
Yes (0xE0+CRN)/d/rd32 Read one of the CPU’s control registers
READ_DREG Non-Intrusive Yes (0xA0+CRN)/d/rd32 Read one of the debug module’s control
registers
READ_MEM.sz Non-Intrusive Yes (0x30+4 x sz)/ad24/d/rd.sz Read the appropriately-sized (sz) memory
value from the location specified by the
24-bit address
READ_MEM.sz_WS Non-Intrusive No (0x31+4 x sz)/ad24/d/ss/rd.sz Read the appropriately-sized (sz) memory
value from the location specified by the
24-bit address and report status
READ_PSTB Non-Intrusive Yes (0x50+CRN)/d/rd32 Read the requested longword location from
the PST trace buffer
READ_Rn Active
Background
Yes (0x60+CRN)/d/rd32 Read the requested general-purpose
register (An, Dn) from the CPU
READ_XCSR_BYTE Always
Available
No 0x2D/rd8 Read the most significant byte of the debug
module’s XCSR
READ_CSR2_BYTE Always
Available
No 0x2E/rd8 Read the most significant byte of the debug
module’s CSR2
READ_CSR3_BYTE Always
Available
No 0x2F/rd8 Read the most significant byte of the debug
module’s CSR3
Table 18-25. BDM Command Summary (continued)
Command
Mnemonic
Command
Classification
ACK
if Enb?
1
Command
Structure
Description