Register Description
12.2.59Offset 12Ch:
Table 93. | Offset 12Ch: | |||
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Bits |
| Type | Reset | Description |
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15:14 |
| RsvdZ | 00b | Reserved Zero: Software must write 0 to these bits. |
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| Internal Bridge Data Error: This bit is set when an error occurs in the internal data queues |
13 |
| RWCS | 0b | in the Intel® 41210 Serial to Parallel PCI Bridge in either direction. The 41210 does not log |
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| any headers for this error. |
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12 |
| RWCS | 0b | |
| pin is asserted. There is no header logging associated with the setting of this bit. | |||
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| PERR# pin is asserted when it is mastering a write (memory, I/O, or configuration) or |
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| sourcing data during a split/delayed read completion on its secondary interface. The 41210 |
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| logs the header of the transaction in which the PERR# is detected (regardless of the data |
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| phase in which it is detected) in the |
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11 |
| RWCS | 0b | the bridge receives a |
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| The header log under this condition is the command, address, and attribute portion of the |
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| Split Completion Message. |
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| NOTE: This status bit and the associated header log are always updated regardless of |
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| whether the PERR# detected was the result of a PCI bus error or of forwarded |
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| poisoned data. However, error messages are not escalated to PCI Express* when |
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| the PERR# detection is due to forwarded poisoned data. |
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| PCI Delayed Transaction Timer Expiry: This bit is set by the 41210 when it detects that a |
10 |
| RWCS | 0b | DT |
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| transaction. No header is logged. |
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| the target of an upstream transaction and an address parity error is detected by the 41210 |
9 |
| RWCS | 0b | (regardless of whether the bus mode is PCI or |
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| transaction in which it detected the address/attribute parity error in the |
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8 |
| RWCS | 0b | the target of an upstream transaction and an attribute parity error is detected by the 41210. |
| The 41210 logs the header of the transaction in which it detected the address/attribute | |||
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| parity error in the |
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| (PCI, |
7 |
| RWCS | 0b | with target sourcing data to the 41210, and a data parity error was detected by the 41210. |
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| The 41210 logs the header of the transaction in which it detected the data parity error in the |
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6 |
| RWCS | 0b | Split Completion Message Data Error: This bit is set when a split completion message is |
| received with an uncorrectable data parity error. | |||
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| Unexpected Split Completion: This bit is set when a completion is received from |
5 |
| RWCS | 0b | that matches the bus number range on the primary side of the 41210 but the Requester |
| ID:tag combination does not match one of the NP transmissions that the 41210 has | |||
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| outstanding on |
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4 |
| RsvdZ | 0b | Reserved Zero: Software must write a 0 to this bit. |
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3 |
| RWCS | 0b | transaction on the |
| that transaction. This bit is also set when the bridge receives a | |||
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| Message with Master Abort Status. The header log under this condition is the command, |
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| address, and attribute portion of the Split Completion Message. |
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Intel® 41210 Serial to Parallel PCI Bridge Developer’s Manual | 111 |