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SRIO Registers
5.84Port Error and Status CSR n (SPn_ERR_STAT)
Each of the four ports is supported by a register of this type.
Figure 140. Port Error and Status CSR n (SPn_ERR_STAT)
26 | 25 | 24 | 20 | 19 | 18 | 17 | 16 | ||
Reserved | OUTP | OUTP | OUTP | Reserved | OUTP | OUTP | OUTP | OUTP | OUTP |
| UT_P UT_FL UT_D |
| UT_R UT_R | UT_R UT_E UT_E | |||||
| KT_D D_EN EGRD |
| ETRY | ETRIE | ETRY | RROR | RROR | ||
| ROP | C | _ENC |
| _ENC | D | _STP | _ENC | _STP |
RC- | RC- | RC- | RC- | R- | R- | RC- | R- | ||
| 0x00 | 0x00 | 0x00 |
| 0x00 | 0x00 | 0x00 | 0x00 | 0x00 |
LEGEND: R = Read only; |
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10 | 9 | 8 | 4 | 3 | 2 | 1 | 0 | ||
Reserved | INPUT | INPUT | INPUT | Reserved | PORT | Reserv | PORT | PORT | PORT |
| _RET _ERR _ERR |
| _WRIT | ed | _ERR | _OK | _UNIN | ||
| RY_S OR_E OR_S |
| E_PN |
| OR |
| ITIALI | ||
| TP | NC | TP |
| D |
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| ZED |
R- | RC- | R- | RC- | R- | RC- | R- | R- | ||
| 0x00 | 0x00 | 0x00 |
| 0x00 | 0x00 | 0x00 | 0x00 | 0x01 |
LEGEND: R = Read only;
Table 114. Port Error and Status CSR n (SPn_ERR_STAT) Field Descriptions
Bit | Field | Value | Description |
Reserved |
| Reserved | |
26 | OUTPUT_PKT_D |
| Output port has discarded a packet. (switch devices only) |
| ROP |
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25 | OUTPUT_FLD_E |
| Output port has encountered a failed condition, meaning that the failed port error threshold has |
| NC |
| been reached in the Port n Error Rate Threshold Register. Once set, it remains set until written with |
|
|
| a logic 1 to clear. |
24 | OUTPUT_DEGR |
| Output port has encountered a degraded condition, meaning that the degraded port error threshold |
| D_ENC |
| has been reached in the Port n Error Rate Threshold Register. Once set, it remains set until written |
|
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| with a logic 1 to clear. |
Reserved |
| Reserved | |
20 | OUTPUT_RETRY |
| Output port has encountered a retry condition. This bit is set when bit 18 is set. Once set, remains |
| _ENC |
| set until written with a logic 1 to clear. |
19 | OUTPUT_RETRI |
| Output port has received a |
| ED |
| is set when bit 18 is set and is cleared when a |
|
|
| symbol is received |
18 | OUTPUT_RETRY |
| Output port has received a |
| _STP |
| |
17 | OUTPUT_ERRO |
| Output port has encountered (and possibly recovered from) a transmission error. This bit is set |
| R_ENC |
| when bit 16 is set. Once set, remains set until written with a logic 1 to clear |
16 | OUTPUT_ERRO |
| Output is in the "output |
| R_STP |
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|
Reserved |
| Reserved | |
10 | INPUT_RETRY_ |
| Input port is in the "input |
| STP |
|
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9 | INPUT_ERROR_ |
| Input port has encountered (and possibly recovered from) a transmission error. This bit is set when |
| ENC |
| bit 8 is set. Once set, remains set until written with a logic 1 to clear |
8 | INPUT_ERROR_ |
| Input port is in the "input |
| STP |
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Reserved |
| Reserved | |
4 | PORT_WRITE_P |
| Port has encountered a condition which required it to initiate a Maintenance |
| ND |
| This bit is only valid if the device is capable of issuing a maintenance |
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| set remains set until written with a logic 1 to clear. |
3 | Reserved |
| Reserved |
2 | PORT_ERROR |
| Input or output port has encountered an error from which hardware was unable to recover. Once |
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| set, remains set until written with a logic 1 to clear. |
186 | Serial RapidIO (SRIO) |
| SPRU976 |