Module idma_error_handler
Handles AXI read and write error on the manager interface.
Currently two modes are supported:
-
‘CONTINUE’: just continue with the 1D transfer
-
‘ABORT’: abort the current 1D transfer
Parameters
MetaFifoDepth: int unsigned
Number of active transfers in the data path as well as in the memory system
PrintFifoInfo: bit
Print the info of the FIFO configuration
idma_rsp_t: type
1D iDMA response type
idma_eh_req_t: type
Error handling request type
addr_t: type
Address type
r_dp_rsp_t: type
Read datapath response type
w_dp_rsp_t: type
Write datapath response type
Ports
clk_i: input logic
Clock
rst_ni: input logic
Asynchronous reset, active low
testmode_i: input logic
Testmode in
rsp_o: output idma_rsp_t
1D iDMA response
rsp_valid_o: output logic
1D iDMA response valid
rsp_ready_i: input logic
1D iDMA response ready
eh_i: input idma_eh_req_t
Error handling request
eh_valid_i: input logic
Error handling request valid
eh_ready_o: output logic
Error handling request ready
req_valid_i: input logic
1D iDMA request valid
req_ready_i: input logic
1D iDMA request ready
r_addr_i: input addr_t
The current read address (burst address) injected into the datapath
r_consume_i: input logic
The address is consumed by the datapath
w_addr_i: input addr_t
The current write address (burst address) injected into the datapath
w_consume_i: input logic
The address is consumed by the datapath
legalizer_flush_o: output logic
Invalidate the current burst transfer, stops emission of requests
legalizer_kill_o: output logic
Kill the active 1D transfer; reload a new transfer
dp_busy_i: input logic
The datapath is busy at the moment. This includes the read & write machines as well as the
buffer.
dp_poison_o: output logic
If the datapath has the ability to mask invalid data (MaskInvalidData set to True), this
flag masks the output during flushes to reduce toggling activities
r_dp_rsp_i: input r_dp_rsp_t
Read datapath response
r_dp_valid_i: input logic
Read datapath response valid
r_dp_ready_o: output logic
Read datapath response ready
w_dp_rsp_i: input w_dp_rsp_t
Write datapath response
w_dp_valid_i: input logic
Write datapath response valid
w_dp_ready_o: output logic
Write datapath response ready
w_last_burst_i: input logic
Write datapath currently works on last burst of a 1D transfer
w_super_last_i: input logic
The last flag which is assigned by the controlling unit
fsm_busy_o: output logic
Error handler is busy
cnt_busy_o: output logic
Types
| num_outst_t | The number of outstanding 1D transfers in the datapath needs to be tracked with a simple |
| error_state_e | The state of the error handling FSM: |