Freescale-semiconductor ColdFire MCF52210 Manual do Utilizador descarregar pdf (Página 524)

Debug Module

MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2

28-28 Freescale Semiconductor

Command/Result Formats:

Command Sequence:

Figure 28-23. READ Command Sequence

Operand Data: The only operand is the longword address of the requested location.

Result Data: 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.

1514131211109876543210

0x1 0x9 0x0 0x0

Result X X X X X X X X D[7:0]

Word Command 0x1 0x9 0x4 0x0

Result D[15:0]

Longword Command 0x1 0x9 0x8 0x0

Result D[31:16]

Figure 28-22. READ Command/Result Formats

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Freescale-semiconductor ColdFire MCF52210 Manual do Utilizador Página 524