LP3925 Datasheet, PDF (34/51 Pages) Texas Instruments – High Performance Power Management Unit for Handset Applications

FIGURE 18. USB Transceiver Configured to 5-Pin Interface
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VM
VP
RCV
OE_N
SPND
INTERFACE PINS
USB interface minus input/output
USB interface plus input/output
Receiver data - single ended output from USB differential lines.
USB Output Enable, active low.
USB suspend mode control input. A logical high will power down the differential receiver; VM and VP will remain
active with reduced power consumption.
SPND
0
0
1
1
CONTROLLING THE TRANSCEIVER IN 5-PIN CONFIGURATION
OE_N
0
1
0
1
D+/D−
Driving
Receiving
Driving
Receiving
RCV
Active
Active
USB_RCV_OFF in 0x6B
USB_RCV_OFF in 0x6B
VP/VM
Input
Output
Input
Output
Function
Normal Transmitting
Normal Receiving
Low-Power Transmitting
Low-Power Receiving
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