Renesas RL78 Series User Manual

RL78/F13, F14 CHAPTER 23 STANDBY FUNCTION
R01UH0368EJ0210 Rev.2.10 1526
Dec 10, 2015
Table 23-1. Operating Statuses in HALT Mode (2/2)
HALT Mode Setting
Item
When HALT Instruction Is Executed While CPU Is Operating
on Subsystem Clock
When HALT Instruction Is
Executed While CPU Is
Operating on Low-speed
On-chip Oscillator Clock
(f
IL)
When CPU Is Operating on
XT1 Clock (f
XT)
When CPU Is Operating on
External
Subsystem Clock (f
EXS)
System clock Clock supply to the CPU is stopped
Main system clock fIH Operation disabled
fX
fEX
fPLL
Subsystem clock fXT Operation continues
(cannot be stopped)
Cannot operate Cannot operate
fEXS Cannot operate Operation continues (cannot
be stopped)
fIL
Set by bit 1 (HPIEN) of on-chip debug option byte (000C3H/020C3H), 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, SELLOSC = 0, and HPIEN = 1: Oscillates
 WUTMMCK0 = 0, SELLOSC = 0, and HPIEN = 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 Operation stopped (operation can continue during DTC transfer)
Port (latch) Status before HALT mode was set is retained
Timer array unit Operable (Operation is disabled while in the low consumption RTC mode)
Real-time clock (RTC) Operable
Watchdog timer See CHAPTER 11 WATCHDOG TIMER
Clock monitor Operation stopped
Timer RJ Operable (Operation is disabled while in the low consumption RTC mode)
Timer RD
Clock output/buzzer output
A/D converter Operation disabled
D/A converter
Comparator
Serial array unit (SAU) Operable (Operation is disabled while in the low consumption RTC mode)
Serial interface (IICA) Operation disabled
DTC Operable
ELC
Linking between operational function blocks is possible.
LIN/UART module (RLIN3) Operation disabled
CAN interface (RS-CAN lite)
Power-on-reset function Operable
Voltage detection function
External interrupt
Key interrupt function

Renesas RL78 Series Specifications

General

Core	RL78
CPU Clock Speed	Up to 32 MHz
Flash Memory	Up to 512 KB
RAM	Up to 32 KB
Operating Voltage	1.6 V to 5.5 V
Low Power Modes	HALT, STOP, SNOOZE
CPU Architecture	16-bit
Temperature Range	-40°C to +85°C
Package	LQFP
Timers	16-bit timers
Communication Interfaces	UART, I2C, LIN
A/D Converter	12-bit