Datasheet

78K0/Kx2-L CHAPTER 19 STANDBY FUNCTION
R01UH0028EJ0400 Rev.4.00 648
Sep 27, 2010
Table 19-3. Operating Statuses in STOP Mode
When STOP Instruction Is Executed While CPU Is Operating on Main System Clock STOP Mode Setting
Item
When CPU Is Operating on
Internal High-Speed
Oscillation Clock (f
IH)
When CPU Is Operating on
X1 Clock (f
X)
When CPU Is Operating on
External Main System Clock
(f
EXCLK)
System clock Clock supply to the CPU is stopped
fIH
fX
Stopped
Main system clock
fEXCLK Input invalid
fXT Status before STOP mode was set is retained
Subsystem clock
fEXCLKS Operates or stops by external clock input
fIL Status before STOP mode was set is retained
CPU
Flash memory
Operation stopped
RAM
Port (latch)
Status before STOP mode was set is retained
16-bit timer/event counter 00 Operation stopped
50 Operable only when TI50 is selected as the count clock 8-bit timer/event
counter
51 Operable only when TI51 is selected as the count clock
H0 Operable only when TM50 output is selected as the count clock during 8-bit timer/event counter
50 operation
8-bit timer
H1 Operable only when f
IL, fIL/2
6
, fIL/2
15
is selected as the count clock
Real-time counter (RTC) Operable
Watchdog timer Operable. Clock supply to watchdog timer stops when “internal low-speed oscillator can be
stopped by software” is set by option byte.
Clock output Operable only when subsystem clock is selected as the count clock
A/D converter Operation stopped
Operational amplifiers 0, 1 Operable
UART6 Operable only when TM50 output is selected as the serial clock during 8-bit timer/event counter
50 operation
CSI10
CSI11
Operable only when external clock is selected as the serial clock
Serial interface
IICA Wakeup by address match operable
Key interrupt
Power-on-clear function
Low-voltage detection function
External interrupt
Operable
Remarks 1. fIH: Internal high-speed oscillation clock, fX: X1 clock
f
EXCLK: External main system clock, fXT: XT1 clock
f
EXCLKS: External subsystem clock, fIL: Internal low-speed oscillation clock
2. The functions mounted depend on the product. Refer to 1.4 Block Diagram and 1.5 Outline of
Functions.