gl819 Genesys Logic, gl819 Datasheet - Page 15

• Manufacturer Part Number: gl819
• Description: Usb 2.0 Generation 3 Multi-i/f Card Reader Controller
• Manufacturer: Genesys Logic

CHAPTER 5 FUNCTIONAL DESCRIPTION
UTMI
The USB 2.0 Transceiver Macrocell, it’s the analog circuitry that handles the low level USB protocol and
signaling, and shifts the clock domain of the data from the USB 2.0 rate to one that is compatible with the
general logic.
SIE
The Serial Interface Engine, which contains the USB PID and address recognition logic, and other sequencing
and state machine logic to handle USB packets and transactions.
EPFIFO
Endpoint FIFO includes Control FIFO (FIFO0), interrupt FIFO (FIFO3), Bulk In/Out FIFO (BULKFIFO)
MHE
It contains 5 MIF (Media Interface)
8051 Core/SRAM/LUT/Mask ROM
An 8-bit Micro-controller to manage card operation, card power, USB Storage Class, data transfer between
USB and card interface, and GPIOs control
©2000-2007 Genesys Logic Inc. - All rights reserved.
Control FIFO
Interrupt FIFO
Bulk In/Out FIFO It can be in the TX mode or RX mode:
MIFs
1. CF/Micro Drive MIF
2. SmartMedia/xD/Flash MIF
3. SD/MMC MIF
4. MemoryStick MIF
5. MemoryStick PRO MIF
FIFO of control endpoint 0.
It is 64-byte FIFO, and it is used for endpoint 0 data transfer.
64-byte depth FIFO of endpoint 3 for status interrupt
1. It contains ping-pong FIFO (512 bytes each bank) for transmit/receive data continuously.
2. It can be directly accessed by Uc
3. Support automatic hardware SmartMedia ECC error correction
GL819 USB 2.0 Generation 3 Multi-I/F Card Reader Controller
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