RL78/F13, F14 CHAPTER 23 STANDBY FUNCTION
R01UH0368EJ0210 Rev.2.10 1538
Dec 10, 2015
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)
Power-on-reset function Operable
Voltage detection function
External interrupt
Key interrupt function
CRC operation
function
High-speed CRC
Operation stopped
General-purpose CRC
Illegal-memory access detection function
RAM2 bit error detection function
RAM guard function
SFR guard function
CPU stack pointer monitor function
Operation stopped (operation can continue during vectored interrupt servicing)
Remark Operation stopped: Operation is automatically stopped before switching to the STOP mode.
Operation disabled: Operation is stopped before switching to the STOP mode.
fIH: High-speed on-chip oscillator clock fIL: Low-speed on-chip oscillator clock
f
X: X1 clock fEX: External main system clock
f
XT: XT1 clock fEXS: External subsystem clock
fPLL: PLL clock
f
WDT: WDT-dedicated low-speed on-chip oscillator clock
(2) SNOOZE mode status output (SNOOZEST)
This function is used to output the status of the SNOOZE mode (in any mode other than the SNOOZE mode or in the
SNOOZE mode) on the specified pin.
This function is executed by f
SL (sub/low-speed on-chip oscillator select clock), timer RD0, event link controller (ELC)
or A/D converter trigger select 0 control circuit
Note
, A/D converter, and ports simultaneously. fSL is used as the count
source for the timer RD0. By using the PWM function of the timer mode, the timer RD0 sets a period in the TRDGRA0
register and generates a compare match signal in the TRDGRB0 and TRDGRC0 registers. The compare match signal
of the TRDGRB0 register is used as the operation trigger of the A/D converter via the ELC or A/D converter trigger
select 0 control circuit
Note
. After receiving this operation trigger, the A/D converter performs A/D conversion in SNOOZE
mode. After the compare match signal of the TRDGRC0 register is received, SNOOZE status is output from the
SNZOUTn (n = 0 to 7) pin selected by the PSNZCNT0 to PSNZCNT3 registers.
Note The RL78/F14 uses the ELC and the RL78/F13 uses the A/D converter trigger select 0 control circuit.
Figure 23-8 shows the configuration of the circuit for SNOOZE mode status output. Figure 23-9 shows the timing of
SNOOZE mode status output.
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