Notes On Power Supply Modes; Notes On Power Control Modes; Note On The Memory Protection Units (Mpus) - Renesas E2 Emulator User Manual

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(3) Debugging in DSTBY mode
Debugging a program that has entered DSTBY is not supported.
3.3.8

Notes on Power Supply Modes

(1) Downloading a program that includes a transition to MINPWON or EXFPWON mode
To download a program that includes a transition to MINPWON or EXFPWON mode, for [Flash] on the
[Debug Tool Settings] tabbed page of the emulator debugger, select [Yes] for [Erase on-chip program
flash before download] (the operation is explained for the case when the e
If [No] is selected, invalid data which can be read in the state where the power to the flash memory is shut
down may be written to code flash memory.
Figure 3.12 Setting of [Erase on-chip program flash before download]
(2) Displaying code flash memory in MINPWON or EXFPWON mode
While the emulator is operating with the MCU in MINPWON or EXFPWON mode, the state of flash
memory to which power has been shut down cannot be confirmed even if contents of code flash memory
are being displayed on the emulator debugger.
Program data that have been downloaded continue to be displayed by the emulator debugger. To confirm
the transition to MINPWON or EXFPWON mode, refer to the status register.
(3) Current drawn during debugging
Since the debugging circuits within the MCU are always active during connection of the emulator
debugger, the MCU draws more current than in the actual user system. Take care on this point when
attempting to measure the current drawn in the user system.
3.3.9

Notes on Power Control Modes

(1) Transitions to the boost mode
Transitions of the MCU to the boost mode are not possible during debugging.
(2) Operation with the PLL
The PLL cannot be used as the MCU's operating clock during debugging.
3.3.10

Note on the Memory Protection Units (MPUs)

(1) Access to protected areas
Table 3.1 shows the operation of the emulator debugger in response to attempted access to areas
protected by each of the MPUs.
R20UT4582EJ0100 Rev.1.00
Jul.16.19
Notes on Usage
2
studio is in use).
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