APPENDIX B POWER SAVING
S1C17001 TECHNICAL MANUAL
EPSON
329
Appendix B: Power Saving
Current consumption will vary dramatically, depending on CPU operating mode, operation clock frequency, and
the peripheral circuits being operated. Listed below are the control methods for saving power.
B.1 Clock Control Power Saving
Figure B.1.1 illustrates the S1C17001 clock system.
OSC3
CCLK
OSC1
OSC1
FOUT3
output circuit
OSC3
oscillator circuit
(8.2MHz)
OSC1
oscillator circuit
(32.768kHz)
Division circuit
(1/1 to 1/4)
Wakeup
wait circuit
Clock gear
(1/1 to 1/8)
Gate
S1C17 core
BCLK
Internal bus, RAM,
ROM
ITC, T16, T8F, UART,
SPI, I2C, T16E, P,
MISC, REMC,
Control resistor (CT,
SWT, WDT, T8OSC1)
PCLK
CLK_256Hz
OSC3
OSC4
Clock source
selection
System
clock
FOUT3
FOUT1
output circuit
FOUT1
Noise filter
RESET
OSC1
OSC2
Gear selection
wakeup
HALT
On/Off control
S1C17 core
S1C17 core
Division ratio
selection
Division circuit
(1/1 to 1/16K)
Division ratio selection On/Off control
On/Off control
On/Off control
SLEEP, On/Off control
SLEEP, On/Off control
Noise filter
NMI
On/Off control
CT, SWT, WDT
T8OSC1
Division
circuit
(1/128)
(1/1 to 1/32)
Gate
Gate
On/Off control
On/Off control
Gate
CLG
PSC
OSC
T8F, T16, T16E,
REMC, P, UART, SPI,
I2C
Gate
HALT
Figure B.1.1 Clock system
Содержание S1C17001
Страница 1: ...Technical Manual S1C17001 CMOS 16 BIT SINGLE CHIP MICROCONTROLLER ...
Страница 31: ...3 MEMORY MAP AND BUS CONTROL 22 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 33: ...4 POWER SUPPLY VOLTAGE 24 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 63: ...6 INITERRUPT CONTROLLER 54 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 87: ...8 CLOCK GENERATOR CLG 78 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 91: ...9 PRESCALER PSC 82 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 133: ...11 16 BIT TIMER T16 124 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 185: ...14 8 BIT OSC1 TIMER T8OSC1 176 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 211: ...16 STOPWATCH TIMER SWT 202 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 219: ...17 WATCHDOG TIMER WDT 210 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 241: ...18 UART 232 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 277: ...20 I2 C 268 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 297: ...21 REMOTE CONTROLLER REMC 288 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 303: ...22 ON CHIP DEBUGGER DBG 294 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...
Страница 313: ...25 PACKAGE 304 EPSON S1C17001 TECHNICAL MANUAL This page intentionally left blank ...