Samsung S5PC110 Manual page 414

S5PC110_UM
OTHERS
RELEASE_RET_MMC_IO
RELEASE_RET_UART_IO
Bit
For more information on list of PADs belonging to
MMC I/O pad, refer to Section 4.2 PIN SUMMARY of
GPIO manual.
[29] RELEASE_RET_MMC_IO is retention control signal to
MMC I/O pad. If you want to disable
RELEASE_RET_MMC_IO, set to 1. After
RELEASE_RET_MMC_IO becomes OFF, this bit will
be cleared to 0.
Usage1: Wakeup from IDLE, DEEP-IDLE, STOP, or
DEEP-STOP with top-level logic ON
-> No need to set this register field.
Usage2: Wakeup from DEEP-IDLE, STOP, or DEEP-
STOP with top-level logic OFF.
-> Set HIGH on this register field to that
corresponding PAD starts to work.
Usage3: Wakeup from SLEEP.
-> First restore GPIO configuration options to those
values before entering SLEEP mode. And then set
HIGH on this register field to that corresponding PAD
starts to work.
0 = Auto clear
1 = RELEASE_RET_MMC_IO
For more information on list of PADs belonging to
MMC I/O pad, refer to Section 4.2 PIN SUMMARY of
GPIO manual.
[28] RELEASE_RET_UART_IO is retention control signal
to UART I/O pad. If you want to disable
RELEASE_RET_UART_IO, set to 1. After
RELEASE_RET_UART_IO becomes OFF, this bit will
be cleared to 0.
Usage1: Wakeup from IDLE, DEEP-IDLE, STOP, or
DEEP-STOP with top-level logic ON
-> No need to set this register field.
Usage2: Wakeup from DEEP-IDLE, STOP, or DEEP-
STOP with top-level logic OFF.
-> Set HIGH on this register field to that
corresponding PAD starts to work.
Usage3: Wakeup from SLEEP.
-> First restore GPIO configuration options to those
values before entering SLEEP mode. And then set
HIGH on this register field to that corresponding PAD
starts to work.
0 = Auto clear
Description
4 POWER MANAGEMENT
Initial State
0
0
4-54