
Chapter 15. Registers Page 15-65
Bit 6 WU Wakeup Initiated from WU Pin
The FX2 sets this bit to1 when wakeup was initiated by the WU pin. Write a 1 to this bit to clear
it.
Bit 5 WU2POL Polarity of WU2 Pin
Polarity of the WU2 input pin. 0 = active low, 1 = active high.
Bit 4 WUPOL Polarity of WU Pin
Polarity of the WU input pin. 0 = active low, 1 = active high.
Bit 2 DPEN Enable/Disable DPLUS Wakeup
Activity on the USB DPLUS signal normally initiates a USB wakeup sequence.
0=Disable
1=Enable
Bit 1 WU2EN Enable WU2 Wakeup
WU2EN =1: enable wakeup from WU2 pin.
Bit 0 WUEN Enable WU Wakeup
WUEN=1: enable wakeup from the WAKEUP pin.
15.10.4 Data Toggle Control
Figure 15-66. Data Toggle Control
Bit 7 Q Data Toggle Value
Q=0 indicates DATA0 and Q=1 indicates DATA1, for the endpoint selected by the I/O and
EP3:0 bits. Write the endpoint select bits (IO and EP3:0), before reading this value.
TOGCTL Data Toggle Control E683
b7 b6 b5 b4 b3 b2 b1 b0
Q S R IO EP3 EP2 EP1 EP0
R R/W R/W R/W R/W R/W R/W R/W
0 0 0 0 0 0 0 0
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