HD64F3437TFI16V Renesas Electronics America, HD64F3437TFI16V Datasheet - Page 578

• Manufacturer Part Number: HD64F3437TFI16V
• Description: MCU FLASH 60K 100-TQFP
• Manufacturer: Renesas Electronics America

Specifications of HD64F3437TFI16V

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

22.2
22.2.1
When the SSBY bit in the system control register is cleared to 0, execution of the SLEEP
instruction causes a transition from the program execution state to sleep mode. After executing the
SLEEP instruction, the CPU halts, but the contents of its internal registers remain unchanged. The
on-chip supporting modules continue to operate normally.
22.2.2
The chip exits sleep mode when it receives an internal or external interrupt request, or a low input
at the RES or STBY pin.
Exit by Interrupt: An interrupt releases sleep mode and starts the CPU’s interrupt-handling
sequence.
If an interrupt from an on-chip supporting module is disabled by the corresponding enable/disable
bit in the module’s control register, the interrupt cannot be requested, so it cannot wake the chip
up. Similarly, the CPU cannot be awakened by an interrupt other than NMI if the I (interrupt
mask) bit is set when the SLEEP instruction is executed.
Exit by RES Pin: When the RES pin goes low, the chip exits from sleep mode to the reset state.
Exit by STBY Pin: When the STBY pin goes low, the chip exits from sleep mode to hardware
standby mode.
546
Sleep Mode
Transition to Sleep Mode
Exit from Sleep Mode