Samsung S5PC100 User Manual page 250

S5PC100 USER'S MANUAL (REV1.0)
PWR_CFG
CFG_BATF_WKUP
Reserved
OSC27_EN
1. These three bits are configured in DEEP-IDLE mode (CFG_DEEP_IDLE = 1'b1) as follows:
TOP_MEMORY_ON_DIDLE = 1'b0
TOP_MEMORY_ON_DIDLE = 1'b1
TOP_MEMORY_ON_DIDLE = 1'b0
TOP_MEMORY_ON_DIDLE = 1'b1
NOTE: If CFG_DEEP_IDLE = 1'b0, TOP memory is always on regardless of TOP_LOGIC_ON_DIDLE,
TOP_MEMORY_ON_DIDLE, and TOP_MEMORY_RET_DIDLE.
10.1.2 Configure EINT[31:0] Wakeup Mask (EINT_WAKEUP_MASK, R/W, Address = 0xE010_8004)
EINT_WAKEUP_MASK
EINT_WAKEUP_MASK
Bit
If the configuration supports E-SLEEP, the system will
entry E-SLEEP mode when nBATF is asserted (nBATF
== 0).
Configure wakeup source from E-SLEEP mode
0 = No wakeup source
1 = use all SLEEP wakeup sources except nBATF
[2]
Wakeup from E-SLEEP requires nBATF condition to
have been cleared (nBATF == 1).
CFG_BATF_WKUP is a don't care if the system is not in
E-SLEEP.
[1] DO NOT CHANGE
Control 27MHz X-tal oscillator pad (XXTI27) in NORMAL
mode. The state is kept in power down modes.
[0]
0 = Disable
1 = Enable
TOP_MEMORY_RET_DIDLE = 1'b0
TOP memory power down
TOP_MEMORY_RET_DIDLE = 1'b0
TOP memory power down
Bit
External interrupt wake-up source masking selection in the
corresponding bit for EINT[31:0]
[31:0]
0 – Unmask
1 - Mask
Description
TOP_LOGIC_ON_DIDLE = 1'b1
TOP_MEMORY_RET_DIDLE = 1'b1
TOP_LOGIC_ON_DIDLE = 1'b0
TOP_MEMORY_RET_DIDLE = 1'b1
Description
Power Management
Reset Value
0
0
1
TOP memory retention
TOP memory on
TOP memory retention
Reset Value
0x0
2.4-51