at572d940hf-cl ATMEL Corporation, at572d940hf-cl Datasheet - Page 32

• Manufacturer Part Number: at572d940hf-cl
• Description: Diopsis 940hf Arm926ej-s Plus Gflops
• Manufacturer: ATMEL Corporation

5.11.6
5.11.7
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AT572D940HF Preliminary
Parallel Input/Output (PIO)
Universal Synchronous Bus Device (USBD)
Timer Counter (TC)
Two Wire Interface (TWI)
The three PIOs provide globally 96 programmable I/O Lines.
These lines are fully programmable through Set/Clear Registers or linked to one of the two
peripheral functions.
Each I/O Line (assigned to a peripheral or used as a general purpose I/O) provides:
The USB Device provides communication services between an external host and D940HF. The
USB device is connected to the APB through a FIFO.
The USB Device features:
The TC consists of three 16-bit Timer Counter Channels providing a wide range of functions
including:
Each channel is user-configurable and contains:
The D940HF provides two independent TWIs.
• 8-level Priority Controller
• Fast Forcing: allows redirection of any normal interrupt source on the nFIQ
• Input change interrupt
• Glitch filter
• Multi-drive option enables driving in open drain
• Programmable pull up on each I/O line
• Pin data status register, supplies visibility of the level on the pin at any time
• USB V2.0 full-speed compliant, 12 Mbits per second
• Embedded USB V2.0 full-speed transceiver
• Embedded dual-port RAM for endpoints
• Suspend/Resume logic
• Embedded Transceivers
• Frequency Measurement
• Event Counting
• Interval Measurement
• Pulse Generation
• Delay Timing
• Pulse Width Modulation
• Up/down Capabilities
• Three external clock inputs
• Five internal clock inputs
• Two multi-purpose input/output signals
7010AS–DSP–07/07