CY7C6730
PRELIMINARY
Document #: 38-08015 Rev. *D Page 67 of 120
Register Description
The OTG Control Register allows control and monitoring over the OTG port on Port1A.
VBUS Pull-up Enable (Bit 13)
The VBUS Pull-up Enable bit enables or disables a 500Ω pull-up resistor onto OTG VBus.
1: 500Ω pull-up resistor enabled
0: 500Ω pull-up resistor disabled
Receive Disable (Bit 12)
The Receive Disable bit enables or powers down (disables) the OTG receiver section.
1: OTG receiver powered down and disabled
0: OTG receiver enabled
Charge Pump Enable (Bit 11)
The Charge Pump Enable bit enables or disables the OTG VBus charge pump.
1: OTG VBus charge pump enabled
0: OTG VBus charge pump disabled
VBUS Discharge Enable (Bit 10)
The VBUS Discharge Enable bit enables or disables a 2KΩ discharge pull-down resistor onto OTG VBus.
1: 2KΩ pull-down resistor enabled
0: 2KΩ pull-down resistor disabled
D+ Pull-up Enable (Bit 9)
The D+ Pull-up Enable bit enables or disables a pull-up resistor on the OTG D+ data line.
1: OTG D+ dataline pull-up resistor enabled
0: OTG D+ dataline pull-up resistor disabled
D– Pull-up Enable (Bit 8)
The D– Pull-up Enable bit enables or disables a pull-up resistor on the OTG D- data line.
1: OTG D– dataline pull-up resistor enabled
0: OTG D– dataline pull-up resistor disabled
D+ Pull-down Enable (Bit 7)
The D+ Pull-down Enable bit enables or disables a pull-down resistor on the OTG D+ data line.
1: OTG D+ dataline pull-down resistor enabled
0: OTG D+ dataline pull-down resistor disabled
D– Pull-down Enable (Bit 6)
The D– Pull-down Enable bit enables or disables a pull-down resistor on the OTG D– data line.
1: OTG D– dataline pull-down resistor enabled
0: OTG D– dataline pull-down resistor disabled
OTG Data Status (Bit 2)
The OTG Data Status bit is a read-only bit and indicates the TTL logic state of the OTG VBus pin.
1: OTG VBus is greater then 2.4V
0: OTG VBus is less then 0.8V
ID Status (Bit 1)
The ID Status bit is a read-only bit that indicates the state of the OTG ID pin on Port A.
1: OTG ID Pin is not connected directly to ground (>10kΩ)
0: OTG ID Pin is connected directly ground (< 10Ω)
(76 pages)
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