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Chapter 18 Version 1 ColdFire Debug (CF1_DEBUG)
MCF51QE128 MCU Series Reference Manual, Rev. 3
400 Freescale Semiconductor
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18.4.1.5.13 READ_Rn
If the processor is halted, this command reads the selected CPU general-purpose register (An, Dn) and
returns the 32-bit result. See Table 18-24 for the CRN details when CRG is 01.
If the processor is not halted, this command is rejected as an illegal operation and no operation is
performed.
18.4.1.5.14 READ_XCSR_BYTE
Read the special status byte of XCSR (XCSR[31–24]). This command can be executed in any mode.
18.4.1.5.15 READ_CSR2_BYTE
Read the most significant byte of CSR2 (CSR2[31–24]). This command can be executed in any mode.
18.4.1.5.16 READ_CSR3_BYTE
Read the most significant byte of the CSR3 (CSR3[31–24]). This command can be executed in any mode.
Read general-purpose CPU register Active Background
0x60+CRN
Rn data
[31–24]
Rn data
[23–16]
Rn data
[15–8]
Rn data
[7–0]
host →
target
D
L
Y
target →
host
target →
host
target →
host
target →
host
Read XCSR Status Byte Always Available
0x2D
XCSR
[31–24]
host →
target
host →
target
Read CSR2 Status Byte Always Available
0x2E
CSR2
[31–24]
host →
target
host →
target
Read CSR3 Status Byte Always Available
0x2F
CSR2
[31–24]
host →
target
host →
target