SD 4.0 Device Controller

Overview

The SD 4.0 Device IP core is used to implement SD cards connected to a Host processor over standard SD bus. The flexible architecture of SD Device IP core is targeted to develop a range of memory cards.

The SD 4.0 Device IP core is fully compliant with the SD specification. It supports the dual row pin memory cards with D0+- and D1+- pins for differential signaling . Differential clock (RCLK) can be tuned in the range of 26Mhz to 52Mhz. It also supports SPI (Only SD3.0), SD1, and SD4 bit transfer modes, and multiple functions per card. High-speed and full speed
SD data transfers are also supported to capacities up to 2TB. All version 4.0 features are supported including the UHS-II PHY, SDHS, mini-SD, and micro SD extended 2.7-3.6V operating voltages. The SD Device controller includes a bidirectional FIFO that is expandable from 4 x 32-bit to any size required.

The SD 4.0 Device supports Half duplex(312 MB/s) and Full duplex(156 MB/s) in SD4.0 mode. It also supports low voltage and low power consumption with enhanced power management using new power Control mode by allowing LPS (Low power states like – EIDL and DORMANT)

The controller integrates a Scatter Gather DMA engine automating data transfers between the SD card and system memory.

The SD Device core is available with many system bus interfaces including AHB, AXI, OCP. The wide selection of interfaces enables the core to integrate effectively SOC designs today.

Key Features

Compliant with SD Specification 4.0
Transfers up to 312 MB/s (UHS156, 52MHz) and supports Half duplex(312 MB/s) and Full duplex (156 MB/s) in SD4.0 mode
Low voltage and low power consumption with enhanced power management using new power Control mode by allowing LPS (Low power states like – EIDL and DORMANT)
High-performance UHS-II PHY or UHS-I Host connection
Host clock rate from 0 to 208 MHz (SDR 104)
Supports SPI (Only SD3.0), 1-bit, and 4-bit SD modes
Supports all SD form factors including standard, mini and micro SD card
Bus Master with Scatter Gather DMA
Dual operating voltage range 2.7V – 3.6V and 1.7V - 1.95V
Maximum 104 MB/s read/write with 4-bit data lines in SD3.0 mode
CRC16 integrity check for Data and Command
Programmable through AMBA 3.0 AHB bus
SD 4.0 supports Point2Point and Multi device connection using Ring Connection topology
CRC7 (command), CRC16 (data) integrity
Supports direct R/W (IO52) and extended R/W (IO53)
Programmable through AMBA 3.0 AHB bus

Benefits

Fully compliant core
Premier direct support from Arasan IP core designers
Easy-to-use, industry standard
Test environment
Unencrypted source code allows easy implementation
Reuse Methodology Manual guidelines (RMM) compliant
Verilog code
UHS_II PHY or UHS-I Synthesizable Interface

Deliverables

RTL design in Verilog
Easy-to-use test environment
Synthesis scripts
Technical documents

Technical Specifications

Maturity

Silicon Proven

Availability

Now

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