Debug and Logic Analyzer Mode
Figure 5-3. LAI Signal Group Timing
CLK
LAI data
Cmd/Addr
early
data
late
data
LAI data
on DQ
early
data
late
data
LAI data
on DQS
early
data
late
data
Triggers
Cmd/Addr
trigger matched
to early/late data
Qual
qual on frame
5.1.8
LAI Features
5.1.8.1
Control and Status Registers (CSRs)
LAI mode CSRs will be accessed and programmed through SMBus when in LAI mode.
See Chapter 14, “Registers,” for complete details.
Note:
LAI registers cannot be accessed in-band over the FBD link
5.1.8.2
Pattern Matching
The LAI block can pattern match on three command values at any of three command
slots and combine the results into independent and combined local events. There are
13 total pattern matching events: a command value matches a command slot (9
events), a command value matches any slot (3 events), and all command values
appear in the frame (1 event).
This pattern matching is also used in normal mode for error injection and NB in-band
event generation.Figure 5-4 shows the LAI match and mask logic.
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Intel® 6400/6402 Advanced Memory Buffer Datasheet
INTEL [ INTEL ]
