Invention Grant
US08209446B2 DMA controller that passes destination pointers from transmit logic through a loopback buffer to receive logic to write data to memory
有权
DMA控制器通过环回缓冲区传送来自传输逻辑的目标指针，以接收将数据写入存储器的逻辑
- Patent Title: DMA controller that passes destination pointers from transmit logic through a loopback buffer to receive logic to write data to memory
- Patent Title (中): DMA控制器通过环回缓冲区传送来自传输逻辑的目标指针，以接收将数据写入存储器的逻辑
-
Application No.: US13221622Application Date: 2011-08-30
-
Publication No.: US08209446B2Publication Date: 2012-06-26
- Inventor: Dominic Go , Mark D. Hayter , Zongjian Chen , Ruchi Wadhawan
- Applicant: Dominic Go , Mark D. Hayter , Zongjian Chen , Ruchi Wadhawan
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Lawrence J. Merkel
- Main IPC: G06F13/28
- IPC: G06F13/28
Abstract:
In one embodiment, an apparatus comprises a first interface circuit, a direct memory access (DMA) controller coupled to the first interface circuit, and a host coupled to the DMA controller. The first interface circuit is configured to communicate on an interface according to a protocol. The host comprises at least one address space mapped, at least in part, to a plurality of memory locations in a memory system of the host. The DMA controller is configured to perform DMA transfers between the first interface circuit and the address space, and the DMA controller is further configured to perform DMA transfers between a first plurality of the plurality of memory locations and a second plurality of the plurality of memory locations.
Public/Granted literature
- US20110314186A1 Unified DMA Public/Granted day:2011-12-22
Information query
