s3c2410a Samsung Semiconductor, Inc., s3c2410a Datasheet - Page 228

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

CLOCK & POWER MANAGEMENT
NOTES:
1.
2.
3.
7-10
NORMAL
IDLE
SLOW
POWER_OFF
USB host,LCD, and NAND are excluded.
WDT is excluded. RTC interface for CPU access is included.
SEL : selectable(O,X), O : enable , X : disable OFF: power is turned off
Mode
(SLOW_BIT=1)
ARM920T
SLOW
OFF
O
O
X
Table 7-2. Clock and Power State in Each Power Mode
AHB Modules
Figure 7-8. Power Management State Diagram
(SLOW_BIT=0)
NORMAL
/WDT
OFF
O
O
O
(1)
IDLE_BIT=1
Interrupts, EINT[0:23], RTC alarm
Management
Wait for wake-
POWER_OFF BIT=1
up event
Power
O
O
O
RESET
Previous
GPIO
state
SEL
SEL
SEL
RTC clock
32.768kHz
O
O
O
O
POWER_OFF
IDLE
EINT[15:0],
RTC alarm
& USBH/LCD/NAND
APB Modules
SEL
SEL
SEL
OFF
S3C2410A
(2)