bcm_rod_formatter.bcm_rod_formatter_arc Architecture Reference
ROD formatter main FSM. More...
Inheritance diagram for bcm_rod_formatter.bcm_rod_formatter_arc:
Collaboration diagram for bcm_rod_formatter.bcm_rod_formatter_arc:
Processes | |
| RAM_reader | ( CLK , SCLR ) |
| formatter_fsm | ( CLK , SCLR ) |
Components | |
| bcm_rod_slink | <Entity bcm_rod_slink> |
| S-Link interface. | |
Types | |
| bcm_rod_formatter_fsm_state_typedef | ( formatter_idle , formatter_begin_of_fragment , formatter_header , formatter_header_size , formatter_format_version , formatter_source_ID , formatter_run_number , formatter_Level1_ID , formatter_BC_ID , formatter_trigger_type , formatter_detector_event_type , formatter_data , formatter_last_data , formatter_status_word_1 , formatter_status_word_2 , formatter_status_block_words , formatter_data_block_words , formatter_status_block_position , formatter_end_of_fragment ) |
| enum for formatter FSM | |
Signals | |
| fsm_state | bcm_rod_formatter_fsm_state_typedef |
| ROD formatter FSM states. | |
| formatter_data_valid | std_logic |
| formatter_data_in | std_logic_vector ( 31 downto 0 ) := ( others = > ' 0 ' ) |
| lvlid_i | std_logic_vector ( 31 downto 0 ) := ( others = > ' 0 ' ) |
| formatter_control_word_flag | std_logic |
| formatter_stop_transfer | std_logic |
| intern_slink_data_out | std_logic |
| reset_n | std_logic |
| data_counter | std_logic_vector ( 11 downto 0 ) := ( others = > ' 0 ' ) |
| buffer_data | std_logic_vector ( 223 downto 0 ) := ( others = > ' 0 ' ) |
| buffer_counter | std_logic_vector ( 7 downto 0 ) := ( others = > ' 0 ' ) |
| buffer_eof | std_logic_vector ( 6 downto 0 ) := ( others = > ' 0 ' ) |
| last_data_next | std_logic |
| buffer_data_next | std_logic |
| last_data_available | std_logic |
| last_data_available_i | std_logic |
| LinkBusy | std_logic |
| FSMBusy | std_logic |
Component Instantiations | |
| output_interface | bcm_rod_slink <Entity bcm_rod_slink> |
| S-Link interface. | |
Detailed Description
ROD formatter main FSM.Definition at line 87 of file bcm_rod_formatter.vhd.
Member Function Documentation
| formatter_fsm | ( CLK , | |
| SCLR ) |
formatter FSM, steps through raw event format fragment and reads data from shift reg accordingly
Definition at line 297 of file bcm_rod_formatter.vhd.
00297 formatter_fsm : process (CLK, SCLR) 00298 begin 00299 if (SCLR = '1') then 00300 fsm_state <= formatter_idle; 00301 formatter_data_valid <= '0'; 00302 formatter_control_word_flag <= '1'; 00303 formatter_data_in <= ROD_EMPTY; 00304 data_counter <= X"000"; 00305 lvlid_i <= (others => '0'); 00306 elsif (CLK'event and CLK = '1') then 00307 if (formatter_stop_transfer = '1') then 00308 fsm_state <= fsm_state; 00309 formatter_data_valid <= formatter_data_valid; 00310 formatter_control_word_flag <= formatter_control_word_flag; 00311 formatter_data_in <= formatter_data_in; 00312 data_counter <= data_counter; 00313 else 00314 if ((fsm_state = formatter_end_of_fragment or fsm_state = formatter_idle) and (buffer_counter = "000")) then 00315 formatter_data_valid <= '0'; 00316 else 00317 formatter_data_valid <= '1'; 00318 end if; 00319 if ((fsm_state = formatter_status_block_position) or 00320 (fsm_state = formatter_end_of_fragment and (not (buffer_counter = "000"))) or 00321 (fsm_state = formatter_idle and (not (buffer_counter = "000")))) then 00322 formatter_control_word_flag <= '0'; 00323 else 00324 formatter_control_word_flag <= '1'; 00325 end if; 00326 data_counter <= data_counter; 00327 case fsm_state is 00328 when formatter_idle => 00329 if (not (buffer_counter = "0000")) then 00330 fsm_state <= formatter_begin_of_fragment; 00331 formatter_data_in <= SLINK_BEGIN_OF_FRAGMENT; 00332 else 00333 fsm_state <= formatter_idle; 00334 formatter_data_in <= ROD_EMPTY; 00335 end if; 00336 when formatter_begin_of_fragment => 00337 fsm_state <= formatter_header; 00338 formatter_data_in <= ROD_HEADER; 00339 when formatter_header => 00340 fsm_state <= formatter_header_size; 00341 formatter_data_in <= ROD_HEADER_WORDS; 00342 when formatter_header_size => 00343 fsm_state <= formatter_format_version; 00344 formatter_data_in <= rod_format_version; 00345 when formatter_format_version => 00346 fsm_state <= formatter_source_ID; 00347 formatter_data_in <= rod_source_ID; 00348 when formatter_source_ID => 00349 fsm_state <= formatter_run_number; 00350 formatter_data_in <= rod_run_number; 00351 lvlid_i <= buffer_data(31 downto 0); 00352 when formatter_run_number => 00353 fsm_state <= formatter_Level1_ID; 00354 formatter_data_in <= lvlid_i; 00355 when formatter_Level1_ID => 00356 fsm_state <= formatter_BC_ID; 00357 formatter_data_in <= x"00000" & buffer_data(31 downto 20); 00358 when formatter_BC_ID => 00359 fsm_state <= formatter_trigger_type; 00360 formatter_data_in <= rod_CTP_trigger_type; 00361 when formatter_trigger_type => 00362 fsm_state <= formatter_detector_event_type; 00363 formatter_data_in <= rod_detector_event_type; 00364 when formatter_detector_event_type => 00365 fsm_state <= formatter_data; 00366 formatter_data_in <= buffer_data(31 downto 0); 00367 data_counter <= (data_counter + "01"); 00368 when formatter_data => 00369 data_counter <= (data_counter + "01"); 00370 formatter_data_in <= buffer_data(31 downto 0); 00371 if (data_counter = MAX_FRAGMENT_SIZE or buffer_eof(0) = '1') then 00372 fsm_state <= formatter_last_data; 00373 else 00374 fsm_state <= formatter_data; 00375 end if; 00376 when formatter_last_data => 00377 fsm_state <= formatter_status_word_1; 00378 formatter_data_in <= ROD_STATUS_BLOCK_WORD1; 00379 when formatter_status_word_1 => 00380 fsm_state <= formatter_status_word_2; 00381 formatter_data_in <= ROD_STATUS_BLOCK_WORD2; 00382 when formatter_status_word_2 => 00383 fsm_state <= formatter_status_block_words; 00384 formatter_data_in <= ROD_STATUS_BLOCK_WORDS; 00385 when formatter_status_block_words => 00386 fsm_state <= formatter_data_block_words; 00387 formatter_data_in <= X"00000" & data_counter; 00388 when formatter_data_block_words => 00389 fsm_state <= formatter_status_block_position; 00390 formatter_data_in <= ROD_STATUS_BLOCK_AFTER_DATA; 00391 data_counter <= X"000"; 00392 when formatter_status_block_position => 00393 fsm_state <= formatter_end_of_fragment; 00394 formatter_data_in <= SLINK_END_OF_FRAGMENT; 00395 when formatter_end_of_fragment => 00396 if buffer_counter /= 0 then 00397 fsm_state <= formatter_begin_of_fragment; 00398 formatter_data_in <= SLINK_BEGIN_OF_FRAGMENT; 00399 else 00400 fsm_state <= formatter_idle; 00401 formatter_data_in <= ROD_EMPTY; 00402 end if; 00403 when others => null; 00404 end case; 00405 end if; 00406 end if; 00407 end process;
| RAM_reader | ( CLK , | |
| SCLR ) |
read data from RAM and write it into shift register. SR has 3 modes:
- shift out & fill in
- shift out
- fill in
Definition at line 191 of file bcm_rod_formatter.vhd.
00191 RAM_reader : process (CLK, SCLR) 00192 begin 00193 if SCLR = '1' then 00194 rod_data_next <= '0'; 00195 buffer_data_next <= '0'; 00196 last_data_available <= '0'; 00197 last_data_available_i <= '0'; 00198 last_data_next <= '0'; 00199 buffer_counter <= (others => '0'); 00200 buffer_eof <= (others => '0'); 00201 buffer_data <= (others => '0'); 00202 elsif (CLK'event and CLK = '1') then 00203 if rod_data_available = '1' then 00204 rod_data_next <= '1'; 00205 buffer_data_next <= '1'; 00206 else 00207 rod_data_next <= '0'; 00208 buffer_data_next <= '0'; 00209 end if; 00210 -- shift data out 00211 if (formatter_stop_transfer = '0') and (fsm_state = formatter_detector_event_type or 00212 fsm_state = formatter_data or 00213 fsm_state = formatter_source_ID) then 00214 if fsm_state = formatter_source_ID then 00215 rod_data_next <= '0'; 00216 end if; 00217 if (rod_data_vld and (last_data_available or last_data_available_i)) = '1' then -- fill and shift out 00218 case buffer_counter is 00219 when "00000001" => 00220 buffer_data <= X"000000000000000000000000000000000000000000000000" & rod_input_data; 00221 buffer_eof <= "000000" & rod_fragment_end; 00222 when "00000010" => 00223 buffer_data <= X"0000000000000000000000000000000000000000" & rod_input_data & buffer_data(63 downto 32); 00224 buffer_eof <= "00000" & rod_fragment_end & buffer_eof(1); 00225 when "00000011" => 00226 buffer_data <= X"00000000000000000000000000000000" & rod_input_data & buffer_data(95 downto 32); 00227 buffer_eof <= "0000" & rod_fragment_end & buffer_eof(2 downto 1); 00228 when "00000100" => 00229 buffer_data <= X"000000000000000000000000" & rod_input_data & buffer_data(127 downto 32); 00230 buffer_eof <= "000" & rod_fragment_end & buffer_eof(3 downto 1); 00231 when "00000101" => 00232 buffer_data <= X"0000000000000000" & rod_input_data & buffer_data(159 downto 32); 00233 buffer_eof <= "00" & rod_fragment_end & buffer_eof(4 downto 1); 00234 when "00000110" => 00235 buffer_data <= X"00000000" & rod_input_data & buffer_data(191 downto 32); 00236 buffer_eof <= '0' & rod_fragment_end & buffer_eof(5 downto 1); 00237 when "00000111" => 00238 buffer_data <= rod_input_data & buffer_data(223 downto 32); 00239 buffer_eof <= rod_fragment_end & buffer_eof(6 downto 1); 00240 when others => 00241 buffer_data <= rod_input_data & buffer_data(223 downto 32); 00242 buffer_eof <= rod_fragment_end & buffer_eof(6 downto 1); 00243 end case; 00244 buffer_counter <= buffer_counter; 00245 elsif buffer_counter /= "00000000" then -- just shift out 00246 buffer_data <= rod_input_data & buffer_data(223 downto 32); 00247 buffer_eof <= rod_fragment_end & buffer_eof(6 downto 1); 00248 buffer_counter <= buffer_counter - "01"; 00249 end if; 00250 else -- nothing to shift 00251 if (rod_data_vld and (last_data_available or last_data_available_i)) = '1' then -- fill 00252 case buffer_counter is 00253 when "00000000" => 00254 buffer_data <= X"000000000000000000000000000000000000000000000000" & rod_input_data; 00255 buffer_eof <= "000000" & rod_fragment_end; 00256 when "00000001" => 00257 buffer_data <= X"0000000000000000000000000000000000000000" & rod_input_data & buffer_data(31 downto 0); 00258 buffer_eof <= "00000" & rod_fragment_end & buffer_eof(0); 00259 when "00000010" => 00260 buffer_data <= X"00000000000000000000000000000000" & rod_input_data & buffer_data(63 downto 0); 00261 buffer_eof <= "0000" & rod_fragment_end & buffer_eof(1 downto 0); 00262 when "00000011" => 00263 buffer_data <= X"000000000000000000000000" & rod_input_data & buffer_data(95 downto 0); 00264 buffer_eof <= "000" & rod_fragment_end & buffer_eof(2 downto 0); 00265 when "00000100" => 00266 buffer_data <= X"0000000000000000" & rod_input_data & buffer_data(127 downto 0); 00267 buffer_eof <= "00" & rod_fragment_end & buffer_eof(3 downto 0); 00268 when "00000101" => 00269 buffer_data <= X"00000000" & rod_input_data & buffer_data(159 downto 0); 00270 buffer_eof <= '0' & rod_fragment_end & buffer_eof(4 downto 0); 00271 rod_data_next <= '0'; 00272 when "00000110" => 00273 buffer_data <= rod_input_data & buffer_data(191 downto 0); 00274 buffer_eof <= rod_fragment_end & buffer_eof(5 downto 0); 00275 rod_data_next <= '0'; 00276 when "00000111" => 00277 buffer_data <= buffer_data; 00278 buffer_eof <= buffer_eof; 00279 rod_data_next <= '0'; 00280 when others => 00281 buffer_data <= rod_input_data & buffer_data(223 downto 32); 00282 buffer_eof <= rod_fragment_end & buffer_eof(6 downto 1); 00283 end case; 00284 buffer_counter <= buffer_counter + "01"; 00285 elsif buffer_counter /= "00000000" then 00286 rod_data_next <= '0'; 00287 end if; 00288 end if; 00289 last_data_next <= buffer_data_next; 00290 last_data_available <= rod_data_available; 00291 last_data_available_i <= last_data_available; 00292 end if; 00293 end process;
Member Data Documentation
bcm_rod_formatter_fsm_state_typedef ( formatter_idle , formatter_begin_of_fragment , formatter_header , formatter_header_size , formatter_format_version , formatter_source_ID , formatter_run_number , formatter_Level1_ID , formatter_BC_ID , formatter_trigger_type , formatter_detector_event_type , formatter_data , formatter_last_data , formatter_status_word_1 , formatter_status_word_2 , formatter_status_block_words , formatter_data_block_words , formatter_status_block_position , formatter_end_of_fragment ) [Type] |
bcm_rod_slink [Component] |
output_interface bcm_rod_slink [Component Instantiation] |
The documentation for this class was generated from the following file:
