PSC_ENETWR_CTL
psc_write_word(PSC_ENETWR_CTL, 0x8800);
psc_write_word(PSC_ENETWR_CTL, 0x0400);
psc_write_word(PSC_ENETWR_CTL, 0x8800);
psc_write_word(PSC_ENETWR_CTL, 0x1000);
psc_write_word(PSC_ENETWR_CTL, 0x9000);
psc_write_word(PSC_ENETWR_CTL, 0x0400);
status = psc_read_word(PSC_ENETWR_CTL);