AC21C00

Arasan AC21C00 SDIO Controller Features SDIO Specification Compliant The AC21C00 is compliant with the emerging SDIO Standard 1.10F Supports all standard modes, SPI, SD1 and SD4 modes Supports one function Operates from 0 to 25MHz All commands processed in hardware Supports all commands including Direct R/W (IO52) and Extended R/W (IO53) Suspend/Resume allows interleaving function data flows 16Megabyte Flash interface support ideal for storage of data and drivers in CSA space Integrated industry standard UART supports data rates up to 1Mbits/sec Separate receive and transmit serial data streams Fully programmable serial-interface characteristics: - 5-,6-, 7-, or 8 bit characters - Even, odd or no parity bit generation and detection - 1-, ½, or 2-stop bit generation - Baud generation (DC to 1.5M baud) Large FIFOs for receive and transmit queues Independently controlled transmit, receive, line status, and data set interrupts MODEM control functions (CTS, RTS, DSR, DTR, RI, and DCD) Programmable baud rate generator SD BUS INTERFACE Flash Memory Interface SERIAL EEPROM INTERFACE PROCESSING ENGINE/ REGISTERS RX FIFO TX FIFO FUNCTION 1 INTERFACE UNIT UART Interface to SEEPROM for CIS configuration during initialization Automatically configures chip during power up Programs up to 128 bytes of CIS space card The AC21C00 device is implemented in 0.25 micron, 3.3v technology in a 64 TLFBGA package and operates in a 0 °C to +70°C commercial tempera...