upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 332

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

Chapter 9
332
Figure 9-1
Caution
9.2 “DBTRAP” ROM Correction Unit
CORCN.CORENm
• 1x 8 channels for VFB flash memory and ROM
• The individual channels of the “DBTRAP” ROM correction unit are identified
• Programmable correction address for each channel
• “DBTRAP” exception processing upon correction address match
• Enable/Disable of each channel individually by software
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.
“DBTRAP” ROM correction block diagram
Siemens VDO Preliminary User’s Manual U17566EE1V2UM00
by “m” (m = 0 to 7)
Comparator
address register
Correction
CORADm
VFB address bus
DBTRAP
opcode
ROM/Flash data
replacement
DBTRAP
-
ROM/Flash
ROM Correction Function (ROMC)
ROM/Flash
data
data bus
VFB