Renesas RL78/I1D Application Note page 41

RL78/I1D
5. Power supply current measurement of the flash operating modes
The application note, there is a power supply current measurement mode. Please enable "#define
_CURRENT_EVALUATION_MODE_" (r_cg_userdefine.h).
Power supply current measurement mode operates only the main system clock. All peripheral functions is stoped.
Power supply current measurement mode can measure the HALT mode.
The operation of the power supply current measurement mode
RL78/I1D operation state is switched by a button is pressed (INTP0 interrupt generation).
Wait for the button press (INTP0 interrupt generation) in HALT mode.
All peripheral functions other than the main system clock is stopped.
Table 5.1 is describe the details and transition of power supply current measurement mode.
Table 5.1
Transition state State
0 LV mode
(after reset)
1 LV mode
2 LS mode
(low consumption setting)
3 LS mode
(Normal setting)
4 HS mode
4-Error LS mode
(Normal setting)
5 LS mode
(Normal setting)
6 LP mode
7 LS mode
(Normal setting)
Hardware configuration of the power supply current measurement mode
Power supply current measurement mode sets the digital input/output pin to the low-level output(P40/TOOL0 pin
input setting). For this reason, please digital input/output pin is open.
If LED1 and LED2 are connected, because the current flows to the P60 pin and P61 pin, please check the power
supply current by subtracting the amount of current.
R01AN3597EJ0100 Rev.1.00
Jan. 31, 2017
Details and transition of power supply current measurement mode
Operation clock
HOCO: 4MHz
MOCO: 4MHz
MOCO: 4MHz
HOCO: 8MHz
HOCO: 16MHz
HOCO: 8MHz
HOCO: 8MHz
MOCO: 1MHz
HOCO: 8MHz
Operation state switching IAR
Range of operation Status of the next
voltage transition
1.6V~3.6V 1
1.8V~3.6V 2
1.8V~3.6V 3
1.8V~3.6V 4 or
4-Error
2.4V~3.6V 5
1.8V~3.6V 5
1.8V~3.6V 6
1.8V~3.6V 7
1.8V~3.6V 0
Page 41 of 42