Samsung S3C2440A - Manual (Page 329)

S3C2440A RISC MICROPROCESSOR USB DEVICE
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USB DEVICE CONTROLLER
OVERVIEW
Universal Serial Bus (USB) device controller is designed to provide a high performance full speed function
controller solution with DMA interface. USB device controller allows bulk transfer with DMA, interrupt transfer and
control transfer.
USB device controller supports:
• Full speed USB device controller compatible with the USB specification version 1.1
• DMA interface for bulk transfer
• Five endpoints with FIFO
EP0: 16byte (Register)
EP1: 128byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA
EP2: 128byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA
EP3: 128byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA
EP4: 128byte IN/OUT FIFO (dual port asynchronous RAM): interrupt or DMA
• Integrated USB Transceiver
FEATURE
— Fully compliant with USB Specification Version 1.1
— Full speed (12Mbps) device
— Integrated USB Transceiver
— Supports control, interrupt and bulk transfer
— Five endpoints with FIFO:
One bi-directional control endpoint with 16-byte FIFO (EP0)
Four bi-directional bulk endpoints with 128-byte FIFO (EP1, EP2, EP3, and EP4)
— Supports DMA interface for receive and transmit bulk endpoints. (EP1, EP2, EP3, and EP4)
— Independent 128-byte receive and transmit FIFO to maximize throughput
— Supports suspend and remote wakeup function
NOTE
PCLK should be more than 20MHz to use USB Controller in stable condition.