The SD 4.1/SDIO 4.0/eMMC 5.0 Host IP from Arasan Chip Systems is a highly integrated host controller IP solution that supports three key memory card I/O technologies:
SD 4.1
SDIO 4.0
eMMC 5.1
The SD 4.1 / eMMC 5.1 Host IP handles all of the timing and interface protocol requirements to access these media as well as processing the commands in hardware thereby scaling in both performance and access speeds. The IP supports connection to a single slot and performs multi-block writes and erases that lower access overhead. In addition, a host can utilize this IP to boot directly from an attached eMMC memory, thereby simplifying system initialization during power up. The host interface is based on a standard 32-bit AHB bus which is used to transfer data and configure the SD 4.1 / eMMC5.1 Host IP.
eMMC 5.1 is backward compatible to the previous versions.
Features
eMMC 5.1 Features
Compliant with eMMC Specification Version 5.1
AMBA AXI Specification Version 3.00 (Standard)
AMBA AHB Specification Version 2.00 (Optional)
OCP specification Version 2.2 (Optional)
Supports one of the following System/Host Interfaces: AHB, AXI or OCP
Data transfer using PIO mode on the Host Bus Slave interface, using DMA mode on the Host Bus Master interface. Here the Host Bus is AHB or AXI or OCP Interface
Supports eMMC5.1 Security Protocol Commands
Supports 32-bit and 64-bit system bus
Configurable FIFO size to support different block sizes
Supports Interrupts and wake up functionality
Supports Internal Clock divider for various card operational modes
Host clock rate variable between 0 and 200 MHz
HS400 high speed interface timing mode of up to 400 MB/s data rate
Field firmware update
eMMC device health report
eMMC production state awareness
Secure removal types
Backward compatible to 1-bit, 4-bit and 8-bit modes
Supports Primary & alternate boot modes
Supports Packed commands, Data Tags, Discard & Sanitize features
Supports 4KB block support
Supports Tuning for HS200 mode
Cyclic Redundancy Check CRC7 for command and CRC16 for data integrity
Supports MMC Plus and MMC Mobile
Password protection of Cards
SD / SDIO 4.1 Features
Compliant with Part A2 SD Host controller Version 4.1
Compliant with Part 1 Physical Layer specification Version 4.1
Compliant with Part 1 SD specifications UHS-II addendum Ver1.00
Compliant with Part A2 SD Host controller Version 3.01
Compliant with Part 1 Physical Layer Specification Version 3.01
Compliant with Part E1 SDIO specification Version 4.1
AMBA AXI Specification Version 3.00 (Standard)
AMBA AHB Specification Version 2.00 (Optional)
OCP specification Version 2.2 (Optional)
Supports one of the following System/Host Interfaces: AHB, AXI or OCP
Data transfer using PIO mode on the Host Bus Slave interface, using DMA mode on the Host Bus Master interface. Here the Host Bus is AHB or AXI or OCP Interface
Supports eMMC4.5 Security Protocol Commands
Supports 32-bit and 64-bit system bus
Configurable FIFO size to support different block sizes
Supports Interrupts and wake up functionality
Supports Internal Clock divider for various card operational modes
UHS-II Features
Supports UHS-II data transfer rates between 390Mb/s to 1.56Gb/s
Supports Full duplex & Half duplex modes
Supports peak interface speed of 3.12 Gb/s in Half-duplex; 1.56 Gb/s in Full-duplex mode
Multiple power saving modes: Dormant, Line standby
Interface speed is continuously variable
Interfaces to Arasan’s UHS-II PHY Analog Front End
Implements UHS-II Digital PHY Interface, Link Layer, Transaction Layer and Legacy SD3.0 functionality
Supports Point to Point for Single UHS-II device and Ring topology for supporting Multiple UHS-II devices
Card Detection (Insertion / Removal)
Auto detects UHS-II and UHS-I cards
UHS- I Features (SD3.0/SDIO3.0)
Host clock rate variable between 0 and 208 MHz
Up to 832Mbits per second data rate using 4 parallel data lines (SDR104 mode)
Transfers the data in 1-bit and 4-bit SD modes and SPI mode
Transfers the data in SDR104, DDR50, SDR50, SDR25, SDR12, DS & HS modes
Supports 1.8V voltage Switch operation
Supports Tuning for SDR104 and SDR50
Cyclic Redundancy Check CRC7 for command and CRC16 for data integrity
Arasan’s general purpose I/O PADs are multipurpose PADs that can be programmed to operate in different modes: 1) Output with predetermined source/sink impedance, 2) Open drain, 3) Input, 4) Tristate and 5) Weak pull up or pull down. The I/O PADs are specially designed to seamlessly integrate with Arasan’s eMMC 5.1 and eMMC 5.0 host controller IP. Arasan introduced the industry’s first HS400PHY in 2013 on multiple nodes and since then the engineering team has been working diligently to keep up with the latest versions.
