s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 234

• Manufacturer Part Number: s3c2410a
• Description: 16/32-bit Risc Arm Microprocessor
• Manufacturer: Samsung Semiconductor, Inc.

CLOCK & POWER MANAGEMENT
Power Control of VDDi and VDDiarm
In Power_OFF mode, only VDDi and VDDiarm will be turned off, which is controlled by PWREN pin.
If PWREN signal is active(H), VDDi and VDDiarm are supplied by an external voltage regulator. If PWREN pin is
inactive (L), the VDDi and VDDiarm are turned off.
7-16
Although VDDi, VDDiarm, VDDi_MPLL and VDDi_UPLL may be turned off, the other power pins have to be
supplied.
1.8V / 2.0V Regulator
1.8V / 2.0V
VDDi
VDDiarm
VDDi_MPLL
VDDi_UPLL
S3C2410A
EN
PWREN
Core & Peripherals
(Alive Block)
Figure 7-12. Power_OFF Mode
Power CTRL
1.8V / 2.0V
Power
NOTE
RTC Alarm
EINT
Power
1.8V
RTC
I/O
External Interrupt
3.3V Power
S3C2410A