Cadence launches SD 4.0-compliant host controller IP core18 Sep 2013
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Cadence Design Systems has released its host controller intellectual property core compliant with SD Specification Version 4.0. The Secure Digital 4.0 IP block enables up to 312MB/s of memory card access performance for embedded and removable memory devices. It supports Default, High and Ultra-High Internet connections speeds equivalent to up to 3.12Gbit/s.
The Cadence SD 4.0 Host Controller IP core is designed for Ultra-High Speed Phase I (SDR12, SDR25, SDR50, SDR104, DDR50) as well as Ultra-High Speed Phase II (FD156 and HD312) modes, achieving connection speeds of 1.56Gbit/s and 3.12Gbit/s. To achieve optimal performance, an advanced scatter-gather direct memory access (DMA) engine is integrated into the IP core along with configurable ping-ping data buffers and a dual-buffer option. To achieve low-power operation, the SD 4.0 Host Controller IP core is architected to allow users to independently switch on and off the master SD card clock and the memory card clock, thus saving power.
Designed for ease of use and flexibility, the IP core has a standard AMBA AXI master interface for DMA operation and a separate AMBA AHB slave interface for CPU configuration. The SD 4.0 Host Controller IP core also supports standard Linux drivers for SD Host.
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