Freescale Semiconductor MCF51QE128RM manual Readcreg, Readdreg, Readpstb

Chapter 18 Version 1 ColdFire Debug (CF1_DEBUG)

Table 18-25. BDM Command Summary (continued)

Command	Command	ACK	Command	Description
Mnemonic	Classification	if Enb?1	Structure
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 execution3
NOP	Non-Intrusive	Yes	0x00/d	No operation
READ_CREG	Active	Yes	(0xE0+CRN)/d/rd32	Read one of the CPU’s control registers
	Background
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	Yes	(0x60+CRN)/d/rd32	Read the requested general-purpose
	Background			register (An, Dn) from the CPU
READ_XCSR_BYTE	Always	No	0x2D/rd8	Read the most significant byte of the debug
	Available			module’s XCSR
READ_CSR2_BYTE	Always	No	0x2E/rd8	Read the most significant byte of the debug
	Available			module’s CSR2
READ_CSR3_BYTE	Always	No	0x2F/rd8	Read the most significant byte of the debug
	Available			module’s CSR3

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