A compact low power and scalable IP core which provides a simple, firmware-friendly cost-effective Physical Link interface for memory, i/o and combo devices, such as SD-based memory cards, Mini SD, Micro SD, SDIO Bluetooth devices, SDIO GPS, MMC memory cards, MMC-RS, MMC-Mobile, CE-ATA devices etc etc.
Features:
- SD/SDIO only: Compliant with SD Spec ver1.10 and SDIO Spec ver1.10
- SD/SDIO only: Supports SD 1bit and 4bit modes, as well as SPI mode
- SD/SDIO only: 8bit support for future SD spec enhancements
- SD/SDIO only: Supports SDIO features: Suspend/Resume, Interrupt, Read Wait
- MMC only: Compliant with MultiMediaCard Spec ver4.X/3.X
- MMC only: Supports MMC 1bit, 4bit, 8bit modes, as well as SPI mode
- MMC only: Maximum data rate up to 416Mbits/sec
- MMC only: Supports Interrupt-mode (Wait-IRQ)
- MMC only: Supports CEATA specifications (ver1.0), including Completion Signal
- All command and response types are supported
- Generic 8/16/32 bit system bus interface
- Optional extended data buffering 0-4K bytes.
- Optional read/write data DMA
- Card-Busy signal asserted by hardware, negated by firmware
- CRC7 and CRC16 checksum logic
- Supports data block size of 1 byte to 4K bytes
- Set of Read-Clear status bits with software interrupt mask
- Multi-block read and write
- Stream read and write
- Built-in Bus Test Procedure
- Supports fast and slow cards. clock frequency: 0-52+MHz
- Supports clock suspension
- Supports hot card insertion and removal
- Compact and trivial firmware interface
