S3C2416X RISC MICROPROCESSOR
SYSTEM
CONTROLLER
2-13
6 POWER
MANAGEMENT
The power management block controls the system clocks by software for the reduction of power consumption in
S3C2416. These schemes are related to PLL, clock control logic(ARMCLK, HCLK, PCLK) and wake-up signal.
S3C2416 has four power-down modes. The following section describes each power management mode.
Related registers are PWRMODE, PWRCFG and WKUPSTAT.
6.1 POWER MODE STATE DIAGRAM
Figure 2-10 shows that Power Saving mode state and Entering or Exiting condition. In general, the entering
conditions are set by the main CPU.
N orm al
(G eneral C lock
G ating M ode)
ID LE
S LE E P
S TO P
or D E E P-S TO P
S TA N D B Y W FI
C M D
C M D
O ne of
w akeup
source
R eset
or
restricted
w akeup
evants.
O ne of
w akeup
source
Figure 2-10. Power Mode State Diagram
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...