Samsung S5PC100 User Manual page 206

S5PC100 USER'S MANUAL (REV1.0)
Power Mode
Core
Cortex-
A8
L2
Cache
(2)
SUB
Audio
Logic
3)
domain
(4)
TOP
ALIVE
PLLs
OSCs (XXTI27,
XusbXTI)
XXTI
enabled
Typical
wakeup
(6)
time
XXTI
disabled
1) IEM means Intelligent Energy Management introduced by ARM. IEM is explained in detail separately in IEM
related TRM (Technical Reference Manual).
2) SUB means power domain of Row 2, 3, 5, and 6 in Table 2.4-2.
3) Audio domain means power domain of Row 4 in Table 2.4-2.
4) TOP means power domain of Row 8 in Table 2.4-2.
5) There is second option in DEEP-IDLE mode for low-power MP3 playback, i.e., Top domain and Sub-domain is
power-off, but Audio domain is still power on.
6) This time is measured from wakeup event assertion to ARM reset release (DEEP-IDLE, DEEP-STOP,
and SLEEP mode) or ARM clock supply (IDLE and STOP mode). That is, ARM runs the next instruction this time after
wakeup event is asserted. Restored time is not included. Those saved data in external memory should be restored after
this time. All values are measured assuming external 12MHz oscillator.
For more information refer to Section 8 WAKEUP TIMING DIAGRAM.
Table 2.4-3 Power Mode Summary
NORMAL IDLE
(1)
Run with IEM Standby
Run with IEM Standby
KEEP power
Power on /
state in
Clock off /
NORMAL
Power off
mode
KEEP power
Power on /
state in
Clock off /
NORMAL
Power off
mode
KEEP power
Power on / state in
Clock off / NORMAL
mode
Selectively
Selectively Disabled
Disabled
Selectively
Selectively Disabled
Disabled
XXTI 10 XXTI 6
(7)
cycles cycles
N.A N.A
(5)
DEEP-IDLE STOP
Power off Standby
Retention /
Standby
Power off
KEEP power
state in Clock off /
NORMAL mode Power off
(5)
/ Power off
KEEP power
state in Clock off
NORMAL mode
KEEP power
state in
Clock off
NORMAL mode
(5)
/ Power off
Power on
Selectively Disabled
XXTI 30
XXTI 1424
cycles +
(8)
cycles
300 us
N.A 1.3 ms
Power Management
DEEP-STOP
Power off
Retention /
Power off
Clock off /
Power off
Clock off /
Power off
Clock off /
Power off
Disabled
XXTI 926
cycles +
300 us or
(9)
XXTI 1688
10)
cycles
XXTI 896
cycles +
1.3ms or
12)
XXTI 1688
cycles +
13)
1ms
SLEEP
External
power off
External
power off
External
power off
External
power off
External
power off
External
power off
Selectively
Disabled
XXTI 138
cycles +
(11)
5ms
2.4-7