TCIC_R_ADDR
val = bus_space_read_2(iot, ioh, TCIC_R_ADDR);
#define TCIC_R_ADDR2 (TCIC_R_ADDR+2) /* high word of addr. reg. */
r_addr = tcic_read_4(h, TCIC_R_ADDR);
tcic_write_4(h, TCIC_R_ADDR, reg|TCIC_ADDR_INDREG);
tcic_write_4(h, TCIC_R_ADDR, r_addr);
r_addr = tcic_read_4(h, TCIC_R_ADDR);
tcic_write_4(h, TCIC_R_ADDR, reg|TCIC_ADDR_INDREG);
tcic_write_4(h, TCIC_R_ADDR, r_addr);