mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 641

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

Freescale reserves unassigned command opcodes for future expansion. Unused command formats in any
revision level perform a
30.5.3.3.1
Read the selected address or data register and return the 32-bit result. A bus error response is returned if
the CPU core is not halted.
Command/Result Formats:
Command Sequence:
Operand Data:
Result Data:
30.5.3.3.2
The operand longword data is written to the specified address or data register. A write alters all 32 register
bits. A bus error response is returned if the CPU core is not halted.
Command Format:
Freescale Semiconductor
Command
15
Result
Read A/D Register (
Write A/D Register (
0x2
The BDM status bit (S) is 0 for normally completed commands; S = 1 for
illegal commands, not-ready responses, and transfers with bus-errors.
Section 30.5.2, “BDM Serial
format.
15
12
None
The contents of the selected register are returned as a longword value,
most-significant word first.
0x2
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
NOP
Figure 30-18. RAREG
Figure 30-19. WAREG
Figure 30-17. RAREG
and return an illegal command response.
RAREG/RDREG
11
12
???
RAREG
WAREG
11
0x0
/
/
RDREG
WDREG
0x1
Interface,” describes the receive packet
MS RESULT
/
8
D[31:16]
NOTE
RDREG Command Sequence
D[15:0]
/
/
RDREG Command Format
WDREG Command Format
BERR
XXX
XXX
)
)
D[31:16]
8
D[15:0]
7
7
0x8
’NOT READY’
LS RESULT
NEXT CMD
NEXT CMD
0x8
4
4
A/D
3
A/D
3
2
2
Register
Register
Debug Support
0
0
30-23