A_MC5_DBGI_REQ_ADDR0
t1_write_reg_4(adapter, A_MC5_DBGI_REQ_ADDR0, v1);
t1_write_reg_4(adapter, A_MC5_DBGI_REQ_ADDR0, addr_lo);
t1_write_reg_4(adap, A_MC5_DBGI_REQ_ADDR0, start++);