SDIO101AIHR SD/SDIO/MMC/CE-ATA host controller

The SDIO101A is a SD/SDIO/MMC/CE-ATA host controller with a standard 16-bit asynchronous memory interface. The device conforms to the SD Host Standard Specification Version 2.0. The SDIO101A manages the physical layer of SD, SDIO, MMC and CE-ATA protocols and can be used together with SD Host Standard compatible driver software to add SD/SDIO/MMC/CE-ATA host functionality to a variety of microprocessor systems.

The SDIO101A supports both full-speed (< 25 MHz) and high-speed (< 52 MHz) data transmissions on the SD/SDIO/MMC/CE-ATA port. The SDIO101A offers separate pins for SD/SDIO/MMC/CE-ATA port supply voltage, host interface supply voltage and core supply voltage. The SD/SDIO/MMC/CE-ATA port can operate at a wide voltage range (1.8 V to 3.6 V) which allows the device to interface to a large variety of SD, SDIO, MMC or CE-ATA devices. The SDIO101A allows 1-bit and 4-bit SD transactions and 8-bit MMC/CE-ATA transactions. The 16-bit asynchronous memory interface can operate at a 2.5 V to 3.6 V voltage range.

A built-in, 2 kB data buffer allows for a low interrupt latency time and efficient communication with the host processor at high data rates. The SDIO101A provides a DMA request line that can be connected to an external DMA controller to off-load the host processor and increase overall system performance.

An on-board PLL allows a large range of SD/SDIO/MMC/CE-ATA clock speeds to be generated from a single externally available clock source. An additional fractional divider allows the SD clock speed to be fine-tuned with very fine granularity, which enables the user to achieve the maximum desired SD clock speed from the external clock source.

The SDIO101A offers 5 levels of power saving, including a ‘Hibernate mode’ where the on-board oscillator, PLL and data buffer memories are switched off, and a ‘Coma mode’ in which supply power to most of the device is internally switched off. This allows the device to be used in very power-critical applications

产品特点 Features

General

Provides 1 SD/SDIO/MMC/CE-ATA slot, operating in 1-bit, 4-bit and 8-bit (MMC/CE-ATA) modes
2.5 V to 3.3 V host interface
1.8 V core supply voltage
Separate SD supply voltage pin. SD/SDIO/MMC/CE-ATA slot is able to operate at a wide voltage range (1.8 V to 3.3 V)
Compliant with SDIO card specification version 2.00
Compliant with SD Host Controller Standard Specification Version 2.0
Compliant with SD Physical Layer Specification version 2.0
Compliant with MMC Specification version 3.31 and 4.2
Supports CE-ATA Digital Protocol revision 1.1
Supports CE-ATA Digital Protocol commands (CMD60/CMD61)
Dedicated SD Card Detection input pin (insertion/removal)
Dedicated SD Card Write Protection input pin
Full speed (< 25 MHz) and high-speed (< 52 MHz) SD data transmissions
Supports interrupt and slave-DMA transfer operation
Built-in 2 kB double data buffer (with 1 kB maximum block size) for efficient communication with host processor
Supports SDIO features Multi-block, Suspend/Resume, Read Wait and Wake-up Control
Up to 400 Mbit/s read and write data transfer rates at 50 MHz using MMC 8 data lines
Up to 208 Mbit/s read and write data transfer rates at 52 MHz using SD 4 data lines
On-board crystal oscillator and PLL
5 levels of power saving, including a ‘Hibernate mode’ where oscillator, PLL and memories are switched off, and a ‘Coma mode’ that internally switches off supply power to most of the chip
Additional on-board fractional clock divider for fine-grained SD clock speed control
Cyclic Redundancy Check (CRC) for command and data
Programmable pull-up resistor on SD CMD and SD DATn lines
Programmable drive strength for SDCLK output to optimize SD/SDIO/MMC/CE-ATA clock speed

Host processor interface

Supports 16-bit asynchronous memory interface
Separate host interface power supply pin, able to operate on 2.5 V to 3.3 V
Programmable open collector or push-pull mode for INT interrupt pin output

封装

型号	订购码 (12NC)	可订购的器件编号	产品状态	封装
SDIO101AIHR	9353 002 81551	SDIO101AIHRE	量产	HXQFN60U (SOT1133-2)
SDIO101AIHR	9353 002 81515	SDIO101AIHRZ	量产	HXQFN60U (SOT1133-2)

订货和供应

型号	订购码 (12NC)	可订购的器件编号	化学成分
SDIO101AIHR	9353 002 81551	SDIO101AIHRE	SDIO101AIHR
SDIO101AIHR	9353 002 81515	SDIO101AIHRZ	SDIO101AIHR

SDIO101AIHR 技术支持

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