Table 1-15: Debug Status for the Write Transaction (Cont'd)
Bits
Description
5:2
Response ID for the write response
1:0
Write response received for AXI
The status generated for a read transaction is shown in
X-Ref Target - Figure 1-45
Table 1-16: Debug Status for the Read Transaction
Bits
Description
39:32
Number of beats/read transfers completed for last burst
31:30
Reserved
Data pattern used for the current check:
• 000: 5A and A5
• 001: PRBS pattern
29:27
• 010: Walking zeros
• 011: Walking ones
• 100: All ones
• 101: All zeros
26:19
Pointer value for which the mismatch occurred
18
Data mismatch occurred between the written data and read data
17
Read error occurred, read transaction could not be completed
16
Command error occurred during read transaction
15:4
Reserved
AXI wrapper read FSM state when timeout (watchdog timer should be enabled) occurs:
3:2
• 2'b01: Read command transaction
• 2'b10: Data read transaction
1
Incorrect response ID presented by the AXI slave
0
Read error response on AXI
Zynq-7000 AP SoC and 7 Series FPGAs MIS v4.1
UG586 November 30, 2016
Chapter 1: DDR3 and DDR2 SDRAM Memory Interface Solution
Figure 1-45: Status for the Read Transaction
www.xilinx.com
Figure
1-45.
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