SS_IREQUEST
if (SSR & SS_IREQUEST)
if (SSR & SS_IREQUEST) {
while (((ints = SSR) & SS_IREQUEST) == 0)
while (SSR & SS_IREQUEST) {
if (SSR & SS_IREQUEST)
while (SSR & SS_IREQUEST) {
while (!(SSR & SS_IREQUEST))
while (!(SSR&SS_IREQUEST))
if (SSR & SS_IREQUEST)