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SRIO Registers
5.89 Port Error Rate CSR n (SPn_ERR_RATE)
Each of the four ports is supported by a register of this type (see Table 172). SPn_ERR_RATE is shown in Figure 152 and described in Table 173.
Table 172. SPn_ERR_RATE Registers and the Associated Ports
Register | Address Offset | Associated Port |
SP0_ERR_RATE | 2068h | Port 0 |
SP1_ERR_RATE | 20A8h | Port 1 |
SP2_ERR_RATE | 20E8h | Port 2 |
SP3_ERR_RATE | 2128h | Port 3 |
Figure 152. Port Error Rate CSR n (SPn_ERR_RATE)
31 | 24 | 23 |
| 18 | 17 | 16 |
| ERROR_RATE_BIAS |
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| Reserved | ERROR_RATE_ | |
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| RECOVERY | ||
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15 |
| 8 | 7 |
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| 0 |
| PEAK_ERROR_RATE |
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| ERROR_RATE_COUNTER |
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LEGEND: R/W = Read/Write; R = Read only; |
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Table 173. Port Error Rate CSR n (SPn_ERR_RATE) Field Descriptions
Bit | Field | Value | Description |
ERROR_RATE_BIAS |
| These bits provide the error rate bias value. | |
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| 00h | Do not decrement the error rate counter |
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| 01h | Decrement every 1ms (nominal) |
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| 03h | Decrement every 10ms (nominal) |
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| 07h | Decrement every 100ms |
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| 0Fh | Decrement every 1s (nominal) |
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| 1Fh | Decrement every 10s (nominal) |
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| 3Fh | Decrement every 100s (nominal) |
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| 7Fh | Decrement every 1000s (nominal) |
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| FFh | Decrement every 10000s (nominal) |
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| Other | Reserved |
Reserved | 00h | These | |
ERROR_RATE_RECOVERY |
| These bits limit the incrementing of the error rate counter above the | |
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| failed threshold trigger. |
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| 00b | Only count 2 errors above |
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| 01b | Only count 4 errors above |
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| 10b | Only count 16 errors above |
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| 11b | Do not limit incrementing the error rate count |
PEAK_ERROR_RATE | This field contains the peak value attained by the error rate counter. | ||
ERROR_RATE_COUNTER | These bits maintain a count of the number of transmission errors that | ||
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| have occurred. If this value equals the value contained in the error rate |
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| threshold trigger register, then an error will be reported. |
228 | Serial RapidIO (SRIO) | SPRUE13A |