SDIO to UART Controller

Overview

Key Features

• Compliant with SD Physical Specification Version 2.00 and SDIO Specification Version 2.00.
• Supports SPI, 1-bit and 4bit SD modes.
• Supports SDIO Interrupt feature
• Supports all mandatory SDIO Commands/Response types
• SPI Mode : CMD0, CMD5, CMD52, CMD53, CMD59
• SD Mode : CMD0, CMD3, CMD5, CMD7, CMD52, CMD53.
• CRC7 checking/generation for Command/Response
• CRC16 checking/generation for Data transfer.
• Supports High Speed Mode (up to 50Mhz) of operation.
• Data Transfer in Multi Byte and Multi Block mode using CMD53.
• SDIO only implementation, Combo card features are not supported
• Optional Code Storage Area(CSA) is not supported
• Suspend/Resume Features not supported
• Supports UART16550 function:
• Programmable baud generator divides any input clock by 1 to (216 - 1) and generates the 16x clock.
• MODEM control functions (CTS, RTS, DSR, DTR, RI, and DCD)
• 5, 6, 7, or 8-bit characters
• Even, odd, or no-parity bit generation and detection
• 1, 1/2, or 2-stop bit generation
• Baud generation (DC to 1.5M baud)
• Line break generation and detection
• Independently controlled transmit, receive, line status, and data set interrupts

Benefits

• IP can be quickly customized to implement the SDIO to other devices like USB, PHS, Bluetooth and Wi-Fi etc.

Block Diagram

Applications

• Portable devices: PDA,GPS,GPRS and etc.
• RF Reader

Technical Specifications