Altera RapidIO II MegaCore Function - Manual (Page 137)

Chapter 5: Signals 5–13
Error Management Extension Signals
August 2014 Altera Corporation RapidIO II MegaCore Function
User Guide
Error Reporting Signals
Table 5–16 lists the Error Management Extensions error reporting signals.
Table 5–16. Error Management Extensions Error Reporting Signals
Signal Direction Description
logical_transport_error Output
Asserted when an error is logged in the Logical/Transport Layer
Error Detect
CSR ( Table 6–67 on page 6–43 ), and this error is enabled
for reporting in the Logical/Transport Layer Error Enable CSR
(
Table 6–68 on page 6–45 ). If the LOG_TRANS_ERR_IRQ_EN bit in the Port
0 Control CSR at offset 0x15C ( Table 6–15 on page 6–17 ) has the value of
1’b1 when this signal is raised, the RapidIO II IP core asserts the
std_reg_mnt_irq
interrupt signal. This signal remains asserted until the
Logical/Transport Layer Error Detect CSR is unlocked by user
logic writing the value of 0 to the register.
port_failed Output
This signal is available to report link status to the system host. The signal is
asserted when the Error Rate Failed Threshold trigger
(ERR_RATE_FAILED_THRESHOLD field of the Port 0 Error Rate
Threshold
CSR at offset 0x36C ( Table 6–82 on page 6–53 ) is enabled (is
non-zero) and this value is reached. If the PORT_FAIL_IRQ_EN bit in the
Port 0 Control
CSR at offset 0x15C ( Table 6–15 on page 6–17 ) has the
value of 1’b1 when this signal is raised, the RapidIO II IP core asserts the
std_reg_mnt_irq
interrupt signal.
port_degraded Output
This signal is available to report link status to the system host. The signal is
asserted when the Error Rate Degraded Threshold trigger
(ERR_RATE_DEGR_THRESHOLD field of the Port 0 Error Rate
Threshold
CSR at offset 0x36C ( Table 6–82 on page 6–53 ) is enabled (is
non-zero) and this value is reached. If the PORT_DEGR_IRQ_EN bit in the
Port 0 Control
CSR at offset 0x15C ( Table 6–15 on page 6–17 ) has the
value of 1’b1 when this signal is raised, the RapidIO II IP core asserts the
std_reg_mnt_irq
interrupt signal.