Samsung S5PC100 User Manual page 223

Power Management S5PC100 USER'S MANUAL (REV1.0)
In NORMAL mode, all the three power modes can be used.
If USB OTG phy is in use, then it is in Run mode if there is data transaction, and in IDLE mode if there is no data
transaction.
The change between these two modes is done by USB OTG link.
If USB OTG phy is not in use, then it enters into Suspend mode.
You should follow power down sequence for USB OTG link for Entry to, and Exit from Suspend mode.
In IDLE mode, and DEEP-IDLE mode (top domain on), USB OTG phy keeps its operation or power state in
NORMAL.
Before entry to DEEP-IDLE mode (top domain off), STOP, and DEEP-STOP, it is recommended that USB OTG
phy enters into Suspend mode.
In SLEEP mode, external power to USB OTG phy should be off. Power down mode of USB OTG phy in SLEEP
mode has no meaning.
6.4 HDMI PHY
HDMI phy has two power modes: Run and Power-down mode
• In Run mode, HDMI phy sends and receives data normally.
• In Power-down mode, all power to HDMI phy is off internally.
In NORMAL mode, both the power modes can be used.
If HDMI phy is in use, then it is in Run mode.
If HDMI phy is not in use, it can enter into Power-down mode to save static power by setting register in HDMI link.
In IDLE mode and DEEP-IDLE mode (top domain on), HDMI phy keeps its operation or power state in NORMAL.
Before entry to DEEP-IDLE mode (top domain off), STOP, and DEEP-STOP mode, it is recommended that HDMI
phy enters into Power-down mode.
In SLEEP mode, external power to HDMI phy should be off. Power down mode of HDMI phy in SLEEP mode has
no meaning.
6.5 MIPI D-PHY
MIPI D-phy includes TX phy for DSI and RX phy for CSI.
MIPI D-phy has three power modes: Run, LP, and ULPS mode
• In Run mode, MIPI D-phy sends and receives data normally.
• In LP and ULPS mode, all power MIPI D-phy is off internally.
In NORMAL mode, all the three power modes can be used.
If MIPI D-phy is in use, then it is in Run mode.
If MIPI D-phy is not in use, it enters into LP or ULPS mode to save static power by setting register in MIPI link.
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