PID_BUF
control_reg_set_pid(r8a66597, pipenum, PID_BUF);
r8a66597_mdfy(r8a66597, PID_BUF, PID, pipe->pipectr);
usbhsp_pipectrl_set(pipe, PID_MASK, PID_BUF);
case PID_BUF: