Signals Reference
| A correct parity signal is high if an even number of covered signals are low and low if an odd |
| number of covered signals are low. This definition allows parity to be high when all covered |
| signals are high. |
A.1.53 | RS[2:0]# (I) |
| The Response Status (RS[2:0]#) signals are driven by the responding agent (the agent responsible |
| for completion of the transaction). |
A.1.54 | RSP# (I) |
| The Response Parity (RSP#) signal is driven by the responding agent (the agent responsible for |
| completion of the current transaction) during assertion of RS[2:0]#, the signals for which RSP# |
| provides parity protection. |
| A correct parity signal is high if an even number of covered signals are low and low if an odd |
| number of covered signals are low. During the Idle state of RS[2:0]# (RS[2:0]#=000), RSP# is also |
| high since it is not driven by any agent guaranteeing correct parity. |
A.1.55 | SBSY# (I/O) |
| The Strobe Bus Busy (SBSY#) signal is driven by the agent transferring data when it owns the |
| strobe bus. SBSY# holds the strobe bus before the first DRDY# and between DRDY# assertions |
| for a multiple clock data transfer. SBSY# is deasserted before DBSY# to allow the next data |
| transfer agent to predrive the strobes before the data bus is released. |
| SBSY# is replicated three times to enable partitioning of data paths in the system agents. This copy |
| of the Strobe Bus Busy signal (SBSY#) is an input as well as an output. |
A.1.56 | SBSY_C1# (O) |
| SBSY# is a copy of the Strobe Bus Busy signal. This copy of the Strobe Bus Busy signal |
| (SBSY_C1#) is an output only. |
A.1.57 | SBSY_C2# (O) |
| SBSY# is a copy of the Strobe Bus Busy signal. This copy of the Strobe Bus Busy signal |
| (SBSY_C2#) is an output only. |
A.1.58 | SPLCK# (I/O) |
| The Split Lock (SPLCK#) signal is driven in the second clock of the Request Phase on the Ab[6]# |
| pin of the first transaction of a locked operation. It is driven to indicate that the locked operation |
| will consist of four locked transactions. |
Datasheet | 103 |
