r8a66597 Renesas Electronics Corporation., r8a66597 Datasheet - Page 30

• Manufacturer Part Number: r8a66597
• Description: Assp Usb2.0 2 Port Host/1 Port Peripheral Controller
• Manufacturer: Renesas Electronics Corporation.

R8A66597FP/DFP/BG
2.5.9.2
R e v 1 . 0 1
Selecting the Peripheral Controller function
When "HSE=1" is set for the port, the bit shows "100" when the controller detects a USB bus reset. The controller
then outputs Chirp K, and this bit shows "011" when Chirp JK is detected three times from the USB Host. After Chirp
K is output, if it is not set to Hi-Speed within 2.5ms, the bit shows "010".
When "HSE=0" is set for the port, the bit shows "010" when the controller detects the USB bus reset.
A DVST interrupt is generated when the RHST bit is set to "0101" or "011" after the USB bus reset is detected by the
controller.
O c t 1 7 , 2 0 0 8
p a g e 3 0 o f 1 8 3