r8a66597 Renesas Electronics Corporation., r8a66597 Datasheet - Page 87

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

R8A66597FP/DFP/BG
R e v 1 . 0 1
Execute USB communication using the selected pipe, use the software to continuously write "ACLRM=1" and
"ACLRM=0", clear the FIFO buffer assigned to the selected pipe, and then modify this bit in addition to the status of the
above three registers.
To modify this bit after changing the PID bit of the corresponding pipe from "BUF" to "NAK", check that "CSSTS=0" and
"PBUSY=0", and modify the bit. However, when the controller has modified the PID bit to "NAK", it is not necessary tto
check the PBUSY bit.
O c t 1 7 , 2 0 0 8
p a g e 8 7 o f 1 8 3