Support one device address and up to four endpoints:Ĭontrol (0)/ Bulk Read (1)/ Bulk Write (2).Comply with USB Storage Class specification rev.Comply with 480Mbps Universal Serial Bus specification rev.Inside the chip, it integrates 3.3V to 1.8V regulators and power MOSFETs and it enables the function of on-chip clock source (OCCS) which means no external 12MHz XTAL is needed and that effectively reduces the total BOM cost. Its’ pin assignment design fits to card sockets to provide easier PCB layout. The GL835 integrates a high speed 8051 microprocessor and a high efficiency hardware engine for the best data transfer performance between USB and flash card interfaces. 2.0, USB Storage Class specification ver.1.0, and SD/MMC card interface specification. As a single chip solution for USB 2.0 flash card reader, the GL835 complies with Universal Serial Bus specification rev. It also supports huge density memory cards (up to 2TB), such as SDXC and Memory Stick XC. It supports USB 2.0 high-speed transmission to Secure Digital TM (SD), SDHC, miniSD, microSD (T-Flash), MultiMediaCard TM (MMC), RS-MMC, MMCmicro and MMCmobile on one chip. GL835 is a crystal-less USB 2.0 to Single LUN SD3.0 (UHS-I/SDR-50)/MMC Memory Card Reader controller.
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