r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 149

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
10.5
Table 10.4
10.5.1
10.5.2
Key input interrupt
INT0 to INT4 interrupts
Timer RJ interrupt
Serial interface interrupt
Voltage monitor 1 interrupt
Voltage monitor 2 interrupt
All oscillators except fLOCOWDT are stopped in stop mode. Thus, the CPU clock and the peripheral function
clock are stopped and the CPU and the peripheral functions that operate using these clocks are stopped. Power
consumption is lowest compared to other modes. When the voltage applied to the VCC pin is VRAM or above, the
content of the internal RAM is retained.
The peripheral functions clocked by external signals continue operating.
Table 10.4 lists the Interrupts Used to Exit Stop Mode and Usage Conditions.
The MCU enters stop mode when the CM10 bit in the CM1 register is set to 1 (all clocks stop). At the same
time, the CM06 bit in the CM0 register is set to 1 (divide-by-8 mode).
To use stop mode, set bits OCD1 and OCD0 in the OCD register to 00b and the CM35 bit in the CM3 register to
0 (settings of CM06 bit in CM0 register and bits CM16 and CM17 in CM1 register enabled) before entering the
mode.
To enter wait mode or stop mode while the FMR27 bit in the FMR2 register is 1 (low-current-consumption read
mode enabled), set bits CM37 and CM36 to 00b (return using the CPU clock used immediately before entering
wait mode or stop mode) and the CM35 bit to 0.
The I/O ports retain the states immediately before the MCU enters stop mode.
However, when the CM13 bit in the CM1 register is 1, the XOUT (P4_7) pin is set to high. When the CM13 bit
is 0 (input ports P4_6 and P4_7), P4_7 (XOUT) is set to input state.
Stop Mode
Entering Stop Mode
Pin States in Stop Mode
Interrupt
Preliminary document
Specifications in this document are tentative and subject to change.
Interrupts Used to Exit Stop Mode and Usage Conditions
Usable
Usable without a filter.
Usable when an external pulse is counted without a filter in event counter mode.
When an external clock is selected.
Usable in digital filter disabled mode (when the VW1C1 bit in the VW1C register
is 1).
Usable in digital filter disabled mode (when the VW2C1 bit in the VW2C register
is 1).
Usage Condition
10. Power Control
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