μ
PD720210
6. Functions Description
R19UH0093EJ0200 Rev.2.00
Page 38 of 59
May 26, 2014
6. Functions Description
6.1 Battery
Charging
μ
PD720210 supports the USB Battery Charging Function. It is possible to permit devices to draw VBUS current
in excess of the original USB2.0 specification for charging on the downstream port of
μ
PD720210. This
function complies with Battery Charging Specification Rev1.2.
•
All of the
μ
PD720210 downstream ports support SDP, CDP, DCP, and FVO1/2 mode. (Note 1)
•
It is possible to select one Battery charging mode.
•
It is possible to set the Battery charging mode on the one port with the biggest number among available ports.
•
VBUS must be controlled by PPONxB in each port respectively.
•
Auto mode can also charge other portable devices which do not support USB Battery Charging spec.
SDP:
Standard Downstream Port (no Battery Charging support)
CDP:
Charging Downstream Port (as defined in BC1.2)
DCP:
Dedicated Charging Port (as defined in BC1.2)
Auto:
This mode can detect DCP mode and FVO1 mode automatically.
FVO:
Fixed Voltage Output. (D+ and D- are pulled up at the pre-defined voltage)
The difference of FVO1 and FVO2 is the level of fixed voltage output.
Note 1:
FVO1 mode is supported when using the external SPI ROM.
Summary of Contents for Renesas mPD720210
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