Motorola ColdFire MCF5281 - Manual (Page 642)

Debug Support
30-24 Freescale Semiconductor
Command Sequence
Figure 30-20. WAREG / WDREG Command Sequence
Operand Data Longword data is written into the specified address or data register. The data is
supplied most-significant word first.
Result Data Command complete status is indicated by returning 0xFFFF (with S cleared)
when the register write is complete.
30.5.3.3.3 Read Memory Location ( READ )
Read data at the longword address. Address space is defined by BAAR[TT,TM]. Hardware forces
low-order address bits to zeros for word and longword accesses to ensure that word addresses are
word-aligned and longword addresses are longword-aligned.
WAREG/WDREG
???
LS DATA
’NOT READY’
NEXT CMD
’NOT READY’
XXX
BERR
MS DATA
’NOT READY’
NEXT CMD
’CMD COMPLETE’
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3