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Chapter 9
ROM Correction Function (ROMC)
Siemens VDO Preliminary User’s Manual U17566EE1V2UM00
S
iemens
VDO
spe
ci
fic
JCP
document
9.2 “DBTRAP” ROM Correction Unit
• 1x 8 channels for VFB flash memory and ROM
• The individual channels of the “DBTRAP” ROM correction unit are identified
by “m” (m = 0 to 7)
• Programmable correction address for each channel
• “DBTRAP” exception processing upon correction address match
• Enable/Disable of each channel individually by software
Caution
The “DBTRAP” ROM correction unit is also used by the N-Wire on-chip debug
unit. Thus ROM correction will not be performed on these correction channels
when the microcontroller is operating in N-Wire debug mode.
Figure 9-1
“DBTRAP” ROM correction block diagram
VFB
a
ddre
ss bus
VFB
d
a
t
a
bus
Correction
a
ddre
ss
regi
s
ter
CORADm
CORCN.CORENm
Comp
a
r
a
tor
ROM/Fl
as
h
DBTRAP
-
ROM/Fl
as
h d
a
t
a
repl
a
cement
ROM/Fl
as
h
d
a
t
a
DBTRAP
opcode
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