WebQuestion 23. What Is The Difference Between Uvm Ral Model Backdoor Write/read And Front Door Write/read? Answer : Font door access means using the standard access mechanism external to the DUTY to read or write to a register. This usually involves sequences of time-consuming transactions on a bus interface. WebFeb 13, 2024 · In those cases, the UVM register frontdoor sequence, uvm_reg_frontdoor, is the king. The uvm_register_frontdoor looks like a normal uvm_sequence apart from having the uvm_reg_item rw_info that holds information about the register access. Like if the access is read or write, what the address offset of the access is and a handle to the …
UVM RAL Model: Usage and Application - Design And Reuse
WebFeb 6, 2013 · now if any other register is read via frontdoor using statement - reg_model.my_reg2.read(status, rd_data ,.path(UVM_FRONTDOOR),.parent(this)) ; the value returned is "4" which was the value written to "my_reg" but if the registers are read via backdoor then all value are correctly read. In other words-all other scenarios like. … WebA backdoor access takes zero simulation time since the HDL values are directly accessed and do not consume a bus transaction. This is not the recommended way to verify register acesses in any design, but under … free e waste drop off onehunga
uvm_reg_frontdoor – Register access for more complex frontdoors
WebJul 31, 2013 · When doing backdoor write\read to a register – the code (uvm_reg) uses the default map instead of the map the user gave in the write\read register operation: A. do_write gets rw with the correct map that the user wanted – rw.map. B. When doing backdoor write (1 below) , XpredictX (3 below) is called with rw.local_map (=null). WebUVM Register Back Door Access - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. Reusable UVM_REG Backdoor Automation ... In order to test the sanity of HDLPATHs set to registers by automation, we ran a test sequence that performs front door write followed by back door read and vice versa. 7 ... WebDUT is passed back upstream to the caller of the read method. This mechanism is known as front door access. The alternative to front door access is back door access in which the read or write method call is converted to a DPI access that uses the HDL hierarchical path name to access the register within the DUT. Back door access is blower speed control