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SDIO to UART Controller

SDIO to UART Controller

iW-SDIO to UART bridge is an IP core which converts SDIO slave to UART bus interface. SDIO Slave controller facilitates the design of SDIO cards and reduces the development time. By using this IP core, customers no longer need to spend time on handling the SD bus protocol since such function is provided by the core

Category:

SPECIFICATION

  • 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 UART 16550 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 & 1, 1/2, or 2-stop bit generation
    • Even, odd, or no-parity bit generation and detection
    • Baud generation (DC to 1.5M baud)
    • Line break generation and detection
    • Independently controlled transmit, receive, line status, and data set interrupts

HIGHLIGHTS

  • Compliant with SD Physical Specification Version 2.00 and SDIO Specification Version 2.00
  • SDIO interface supported by the bridging IP enables a low-cost and small size implementation

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