Data storage device connected to a host system via a peripheral component interconnect express (PCIe) interface and method thereof
A host system and storage device technology, applied in the direction of memory address/allocation/relocation, instrument, electrical digital data processing, etc., can solve the problem of high cost
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[0031] 1. A data storage device connected to a host system via a PCIe interface, wherein the host system includes a first memory, and the data storage device includes:
[0032] second memory;
[0033] a non-transparent bridge (NTB) coupled to the host system and having a first portion and a second portion; and
[0034] a processor, coupled between the NTB and the second memory,
[0035] Wherein, there is a first mapping relationship between the first part of the NTB and the first memory address space, and the processor writes the data in the first memory through the first mapping relationship according to the instruction of the host system in the second memory.
[0036] 2. The data storage device according to embodiment 1, wherein the processor also writes another data in the second memory into the second memory through the first mapping relationship according to the instruction of the host system.
[0037] 3. The data storage device according to embodiment 1, wherein the p...
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