Renesas RL78/F14 User Manual

RL78/F13, F14 CHAPTER 23 STANDBY FUNCTION
R01UH0368EJ0210 Rev.2.10 1537
Dec 10, 2015
Table 23-3. Operating Statuses in SNOOZE Mode
STOP Mode Setting
Item
During a period in STOP mode, input of a timer trigger signal for the A/D converter,
reception of a data signal for the LIN/UART module in the UART mode, or the generation
of an interrupt signal for DTC activation
When CPU Is Operating on High-speed On-chip Oscillator Clock (fIH)
System clock Clock supply to the CPU is stopped
Main system clock f
IH Operation started
f
X Stopped
f
EX
f
PLL Operation disabled
Subsystem clock f
XT Use of the status while in the STOP mode continues
f
EXS
fIL
Set by bit 0 (SELLOSC) of the CKSEL register and bit 4 (WUTMMCK0) of the OSMC
register.
 WUTMMCK0 = 1: Oscillates
 WUTMMCK0 = 0 and SELLOSC = 1: Oscillates
 WUTMMCK0 = 0 and SELLOSC = 0: Stops
fWDT Set by bits 0 (WDSTBYON) and 4 (WDTON) of user option byte (000C0H/020C0H)
 WDTON = 0: Stops
 WDTON = 1 and WDSTBYON = 1: Oscillates
 WDTON = 1 and WDSTBYON = 0: Stops
CPU Operation stopped
Code flash memory
Data flash memory
RAM
Port (latch) Use of the status while in the STOP mode continues
Timer array unit Operation disabled
Real-time clock (RTC) Operable (when the subsystem clock is selected as an input clock (fRTC))
Watchdog timer See CHAPTER 11 WATCHDOG TIMER
Clock monitor Operation stopped
Timer RJ
Operable
 In the event counting mode when no TRJIO0 input filters are selected.
 If the subsystem/low-speed on-chip oscillator select clock is selected as the clock source
for counting and the RTCLPC bit of the OSMC register is 0.
 If the low-speed on-chip oscillator is selected as the clock source for counting.
Timer RD Operable (can only operate for output of the SNOOZE status signal when the
subsystem/low-speed on-chip oscillator select clock is selected)
Clock output/buzzer output Operable only when the subsystem/low-speed on-chip oscillator select clock is selected as
the count clock
A/D converter Operable
D/A converter
Operable (the state before the STOP mode was set is retained)
Comparator
Operable (if the settings allow release from the STOP mode and the digital filters are not in
use)
Serial array unit (SAU)
Operation disabled
Serial interface (IICA)
DTC Operable
ELC
Linking between operation function blocks is possible.
LIN/UART module (RLIN3)
Operable (only in the UART mode)
CAN interface (RS-CAN lite)
Operation disabled

Renesas RL78/F14 Specifications

General

Brand	Renesas
Model	RL78/F14
Category	Computer Hardware
Language	English