PEDL60851C-02
ML60851C
¡ Semiconductor
Functional Description
The ML60851C USB device controller contains the Protocol Engine, DPLL, Timer, Status/Control,
FIFO Control, Application Interface, and Remote Wakeup blocks.
• Protocol Engine
The Protocol Engine handles the USB communication protocol. It performs control of packet
transmission/reception,generation/detectionofsynchronouspatterns,CRCgeneration/checking,
NRZI data modulation, bit stuffing, and packet ID (PID) generation/checking.
• DPLL (Digital Phase Locked Loop)
The DPLL extracts clock and data from the USB differential received data (D+ and D–).
• Timer
The Timer block monitors idle time on the USB bus.
• Status/Control
The Status Control block moniors the transaction status and transmits control events to the
application through an interrupt request.
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