Renesas RL78/G1D User Manual

RL78/G13 CHAPTER 18 STANDBY FUNCTION
R01UH0146EJ0100 Rev.1.00 868
Sep 22, 2011
Table 18-3. Operating Statuses in SNOOZE Mode
When Inputting CSIp/UARTq Data Reception Signal or A/D Converter Timer Trigger Signal
While in STOP Mode
STOP Mode Setting
Item
When CPU Is Operating on High-speed on-chip oscillator clock (fIH)
System clock Clock supply to the CPU is stopped
fIH Operation started
fX
Main system clock
fEX
Stopped
fXT
Subsystem clock
fEXS
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
CPU
Code flash memory
Data flash memory
RAM
Operation stopped
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
Clock output/buzzer output Operable only when subsystem clock is selected as the count clock
A/D converter Operable
Serial array unit (SAU)
Operable only CSIp and UARTq only. Operation disabled other than CSIp and UARTq.
Serial interface (IICA)
Multiplier and divider/multiply-
accumulator
DMA controller
Operation disabled
Power-on-reset function
Voltage detection function
External interrupt
Key interrupt function
Operable
CRC operation function
Illegal-memory access
detection function
Operation disabled
Remarks 1. Operation stopped: Operation is automatically stopped before switching to the SNOOZE mode.
Operation disabled: Operation is stopped before switching to the SNOOZE mode.
f
IH: High-speed on-chip oscillator clock fIL: Low-speed on-chip oscillator clock
fX: X1 clock fEX: External main system clock
f
XT: XT1 clock fEXS: External subsystem clock
2. 20 to 64-pin products: p = 00; q = 0
80, 100, 128-pin products: p = 00, 20; q = 0, 2
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Renesas RL78/G1D Specifications

General

Brand	Renesas
Model	RL78/G1D
Category	Computer Hardware
Language	English