ATPPC_SPP_CTR
ctr_sav = bus_space_read_1(iot, ioh, ATPPC_SPP_CTR);
bus_space_write_1(iot, ioh, ATPPC_SPP_CTR, 0x0c);
if (bus_space_read_1(iot, ioh, ATPPC_SPP_CTR) != 0x0c) {
bus_space_write_1(iot, ioh, ATPPC_SPP_CTR, ctr_sav);
ATPPC_SPP_CTR)
(atppc)->sc_ioh, ATPPC_SPP_CTR, (byte))