GMS30C7201 Datasheet, PDF (207/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

12.10.2Block Diagram
USB
Transceiver
Serial
Interface
Engine
SIE
Fast AMBA Peripherals
UDCI
Configuration Rom
(device descriptor)
Device
Interface
DEV
Receive FIFO
Endpoint 1
Transmitt FIFO
Endpoint 2
AMBA Interface
APB I/F
DMAC request
signal
Figure 12-16: USBD Block Diagram
The USB, Figure 12-16: USBD Block Diagram, comprises the Serial Interface Engine (SIE)
and Device Interface (DEV). The SIE connects to the USB through a bus transceiver, and
performs NRZI conversion, bit un-stuffing, CRC checking, packet decoding and serial to
parallel conversion of the incoming data stream. In outgoing data, it does the reverse, that is,
parallel to serial of outgoing data stream and packetizing the data, CRC generation, bit stuffing
and NRZI generation.
GMS30C7201 Data Sheet
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