Samsung S3F401F User Manual
Page 197
S3F401F_UM_REV1.00
POWER MANAGEMENT
9-9
System Control Register (Continued) SYSCON (0x000)
Access: Read/Write
Software Reset Bit
0 = No effect
SWRST
1 = The chip is reset
PCLK Clock Selection Field
00 = SCLK / 8
PCLK
01 = SCLK / 4
PCLK
10 = SCLK / 2
PCLK
PCLKDIV
11 = SCLK
PCLK
NOTE
To make CPU enter into STOP/IDLE mode perfectly, there have to be 4xNOP instructions after the
activation of the Stop or Idle mode. The register SYSCON, system control register, can be used to control
the system operation of chip.
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