Filter
Top Products
Debug Module
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 28-27
28.5.3.3.2 Write A/D Register (WAREG/WDREG)
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:
Command Sequence:
Figure 28-21. 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.
28.5.3.3.3 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 0s for word and longword accesses to ensure that word addresses are
word-aligned and longword addresses are longword-aligned.
1514131211109876543210
0x2 0x0 0x8 A/D Register
D[31:16]
D[15:0]
Figure 28-20. WAREG/WDREG Command Format
WAREG/WDREG
???
LS DATA
’NOT READY’
NEXT CMD
’NOT READY’
XXX
BERR
MS DATA
’NOT READY’
NEXT CMD
’CMD COMPLETE’