SLVERR and DECERR Summary - SLVERR and DECERR Summary - 1.2 English - PG293

The behavior of AXI Firewall IP, regarding the observation of SLVERR or DECERR response code events, is affected by the following conditions:

• In the MI-Side Interrupt Enable Register/SI-Side Interrupt Enable Register, the "Enable firewall blocking" (Bits[31:30, 15:14])
• In the MI-Side Interrupt Enable Register, the "Enable interrupt" bits for SLVERR/DECERR (Bits[23:22, 7:6])
• In the SI-Side Interrupt Enable Register, the "Enable interrupt" bits for SLVERR/DECERR (Bits[26:25, 6:5])
• Device Global Interrupt Enable Register
• MASK_ERR_RESP parameter

The AXI Firewall IP behaviors that are affected by SLVERR or DECERR response code events are:

• Blocking the firewall (and asserting the {si,mi}_{w,r}_err output).
  • Blocking due to SLVERR/DECERR is enabled by the "Enable firewall blocking" (Bits[31:30, 15:14]) in the MI-Side Interrupt Enable Register/SI-Side Interrupt Enable Register.
• Asserting an interrupt request (ip2intc_irpt output).
  • Interrupt requests due to SLVERR/DECERR are enabled by the "Enable interrupt" bits in the MI-Side Interrupt Enable Register/SI-Side Interrupt Enable Register, along with the Device Global Interrupt Enable Register.
• Asserting a SLVERR/DECERR syndrome bit in the Fault Status Register.
  • Asserting a SLVERR/DECERR syndrome bit is enabled by setting either the "Enable firewall blocking" bit or the "Enable interrupt" bit for the corresponding response code in the MI-Side Interrupt Enable Register/SI-Side Interrupt Enable Register (regardless of the Device Global Interrupt Enable Register).
• Propagating SLVERR/DECERR values on the RRESP/BRESP signal outputs on the SI, including driving those outputs to SLVERR while flushing outstanding transactions by a MI-side Firewall.
  • Propagating SLVERR/DECERR on the SI is disabled by the MASK_ERR_RESP parameter.

The following table describes the detailed behavior when a SLVERR (01 ) or DECERR (11 ) value is sampled on the RRESP or BRESP signal on the MI interface (regardless of whether the Firewall is in MI-side Firewall Mode or SI-side Firewall Mode).