DRAM Detective · Case File 0.5
The Bus and the Taxi
The clock rides the bus, data takes the taxi.
Let me follow the two roads on this DIMM…
CK / CA
— the bus · fly-by
HOST
🔔
🔔
🔔
🔔
🚌
DQ / DQS
— the taxi · point-to-point
HOST
🔔
🚕
Two roads, two fates
Bus
fly-by — stops at every die, late & uneven
Taxi
point-to-point — door to door, on time
The clock rides the bus, data takes the taxi.
The bus never stops on time — so you set the watch, stop by stop.
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