The Secure Digital Input Output (SDIO) interface is a card interface defined to connect a SD Host Controller with four different types of cards, namely SDIO card, SD memory card, SD Combo card and Multimedia Card (MMC). SDIO is a master-slave protocol, where SD Host Controller, as a master, performs various operations like card detection, card initialization, card selection, card register read/write and also some other special operations.

eInfochips’ OVM1.0 compliant SDIO HOST Verification IP (VIP) allows coverage driven verification and it is designed to verify all four types of cards mentioned above.

Features:

• OVM compliant (uses SV Test bench and OVM class library version 1.0 and Questa version 6.3e)
• SD Host Specification 1.0 compliant (Barring register space implementation and host driver operations)
• SD Specification 2.00 and SDIO Specification 2.0 Draft compliant.
• Supports SDIO, SD Memory, SD Combo card and Multi-media cards
• Supports single slot operation
• Easily configurable to work as SDIO aware or non-SDIO aware host controller
• Supports card detection on DAT [3] line in SD mode and CS line in SPI mode
• Supports re-initializing of combo card in either SDIO only mode or SD memory only mode
• Supports command level features such as resetting the card, setting bus width and changing bus mode (SD to SPI)
• Supports 1-bit, 4-bit, 8-bit (for MMC Only) SD bus mode and SPI bus mode
• Supports low speed mode, full speed mode and high speed mode operations
• Supports single byte, single block, multiple block (finite and infinite) transfers
• Supports MMC stream transfer operations
• Supports direct command during data transfer (SD mode only)
• Supports read wait operation and allows read wait control by stopping clock and by asserting DAT [2] line low
• Supports asynchronous and synchronous abort mechanism
• Supports Suspend/Resume card operation
• Supports SD 1-bit, SPI mode interrupt and SD 4-bit mode card interrupts
• Supports lock-unlock and erase operation card features
• Supports clock disable and interrupt wake up card features
• Supports Functional Coverage to facilitate Coverage Driven Verification
• Supports Protocol and Transaction level checking with monitor and self checker models
• Supports all SDIO and SD commands
• Plug and Play use (Easy Integration with Verification Environment)