Configuration File Labels

The configuration files provided with the probe software have a number of labels defined that are useful in providing rapid identification of sampling position, DRAM, and Channel Command activity in the state listing. They can also be used as triggers for the logic analyzer. These labels include:

Sampling labels

There are 4 groups of Sampling labels which organize each bit sent for the probe to the logic analyzer by the location of its valid data window and therefore the required sampling position. This makes it more convenient to check the sampling set-up on a bit by bit basis.

DRAM labels

BA_x - Bank Address for Command Slot A, B or C as defined in 3 bits. _x is used to describe the Command slot.

ADD_x - 16 bit label describing the DRAM address bus

DS_x - 4 bits that direct the command to one of the eight possible DRAM DIMMs on the FBD channel. This is how any of the three commands in a frame can be directed to any DIMM in the FBD channel. These bits are used in some Channel Commands as well.

RS_x - Rank Select bit.

Channel Command labels

SB_CMDA_CRC – Southbound Command Slot A CRC 14 bit value.

FO_SB_CMDA_CRC – Failover Southbound Command Slot A CRC 10 bit value

EV_x - Event Debug bits, 8 bits, used in the Channel Command Debug: In band events.

PV_x – 8 bit Parameter Value that is associated with a debug event. This is used in the Channel Command Debug: In band events.

DE_x - 8 bits, each bit refers to the CKE on each DIMM, DE0 would be for DIMM 0, DE1 would be for DIMM1, etc.

RT_x - Relative timing, 10 timing bits communicate relative time of transfer across boundaries. Used in Channel Command Debug: Relative timing.

PH_x - Phase bit, 6 bit field communicates the encoded boundary transfer phase. Used in Channel Command Debug: Relative timing.

EX_x - 17 bit field that communicates debug information, used with Channel Command Debug: Exposed information.

BCST_x - single bit field used in all CKE control commands (commands such as DRAM CKE per DIMM and DRAM CKE per Rank commands). A 1 value targets all DIMMs, if the bit is 0 the command targets only one DIMM specified by the DS bits.