RL78/D1A User's Manual: Hardware - Renesas

Under development
Preliminary document
Specifications in this document are tentative and subject to change.
RL78/D1A CHAPTER 21 STANDBY FUNCTION
Table 21-3. Operating Statuses in SNOOZE Mode (1/2)
SNOOZE Mode Setting
When Inputting A/D Converter Timer Trigger Signal While in SNOOZE Mode
Item When CPU Is Operating on High-speed on-chip oscillator Clock (fIH)
System clock Clock supply to the CPU is stopped
Main system clock fIH Operation started
fX Stopped
PLL
CPU
fEX
Subsystem clock fXT Use of the status while in the STOP mode continues
fIL Set by bits 0 (WDSTBYON) and 4 (WDTON) of option byte (000C0H), and WUTMMCK0 bit of
operation speed mode control register (OSMC)
WUTMMCK0 = 1: Oscillates
WUTMMCK0 = 0 and WDTON = 0: Stops
WUTMMCK0 = 0, WDTON = 1, and WDSTBYON = 1: Oscillates
WUTMMCK0 = 0, WDTON = 1, and WDSTBYON = 0: Stops
Code flash memory
Data flash memory
RAM
Operation stopped
CREG Low power mode
Port (latch) Use of the status while in the STOP mode continues
Timer array unit Operation disabled
Real-time clock (RTC)
Interval timer
Operable
Watchdog timer See CHAPTER 10 WATCHDOG TIMER
CLM Operation stopped
A/D converter Operable
SAU (CSI, IIC)
Serial interface LIN-UART
(UARTF)
CAN controller
LCD controller/driver
Sound generator
Stepper motor controller/driver
(with ZPD)
Multiplier and divider/multiplyaccumulator
DMA controller
Power-on-reset function
Voltage detection function
External interrupt
Internal interrupt
Operation disabled
Operable
R01UH0317EJ0004 Rev. 0.04 1090
Feb. 22, 2013