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5.101
Port Error Rate CSR n (SPn_ERR_RATE)
SRIO Registers
Each of the four ports is supported by a register of this type.
Figure 157. Port Error Rate CSR n (SPn_ERR_RATE)
31-24
23-18
17-16
ERROR_RATE_BIAS
Reserved
ERROR_RATE
_RECOVERY
RW-0xFF
R-0x00
RW-0x00
LEGEND: R = Read only; -n = value after reset
15-8
7-0
PEAK_ERROR_RATE
ERROR_RATE_COUNTER
RW-0x00
RW-0x00
LEGEND: R = Read only; -n = value after reset
Table 131. Port Error Rate CSR n (SPn_ERR_RATE) Field Descriptions
Bit
Field
Value
Description
31-24
ERROR_RATE_B
These bits provide the error rate bias value.
IAS
0x00
Do not decrement the error rate counter
0x01
Decrement every 1ms (nominal)
0x03
Decrement every 10ms (nominal)
0x07
Decrement every 100ms
0x0F
Decrement every 1s (nominal)
0x1F
Decrement every 10s (nominal)
0x3F
Decrement every 100s (nominal)
0x7F
Decrement every 1000s (nominal)
0xFF
Decrement every 10000s (nominal)
Other values are reserved
23-18
Reserved
Reserved
17-16
ERROR_RATE_R
These bits limit the incrementing of the error rate counter above the failed threshold trigger.
ECOVERY
00b
Only count 2 errors above
01b
Only count 4 errors above
10b
Only count 16 errors above
11b
Do not limit incrementing the error rate count
15-8
PEAK_ERROR_R
This field contains the peak value attained by the error rate counter.
ATE
7-0
ERROR_RATE_C
These bits maintain a count of the number of transmission errors that have occurred. If this value
OUNTER
equals the value contained in the error rate threshold trigger register, then an error will be reported.
SPRU976 – March 2006
Serial RapidIO (SRIO)
205
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