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AM1808BZWTA4 Datasheet(Fiches technique) 4 Page - Texas Instruments

Numéro de pièce AM1808BZWTA4
Description  AM1808 ARM Microprocessor
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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AM1808
SPRS653A – FEBRUARY 2010 – REVISED APRIL 2010
www.ti.com
1.3
Description
The device is a Low-power applications processor based on ARM926EJ-S™.
The device enables OEMs and ODMs to quickly bring to market devices featuring robust operating
systems support, rich user interfaces, and high processing performance life through the maximum
flexibility of a fully integrated mixed processor solution.
The ARM926EJ-S is a 32-bit RISC processor core that performs 32-bit or 16-bit instructions and
processes 32-bit, 16-bit, or 8-bit data. The core uses pipelining so that all parts of the processor and
memory system can operate continuously.
The ARM core has a coprocessor 15 (CP15), protection module, and Data and program Memory
Management Units (MMUs) with table look-aside buffers. It has separate 16K-byte instruction and
16K-byte data caches. Both are four-way associative with virtual index virtual tag (VIVT). The ARM core
also has a 8KB RAM (Vector Table) and 64KB ROM.
The peripheral set includes: a 10/100 Mb/s Ethernet MAC (EMAC) with a Management Data Input/Output
(MDIO) module; one USB2.0 OTG interface; one USB1.1 OHCI interface; two inter-integrated circuit (I2C)
Bus interfaces; one multichannel audio serial port (McASP) with 16 serializers and FIFO buffers; two
multichannel buffered serial ports (McBSP) with FIFO buffers; two SPI interfaces with multiple chip
selects; four 64-bit general-purpose timers each configurable (one configurable as watchdog); a
configurable 16-bit host port interface (HPI) ; up to 9 banks of 16 pins of general-purpose input/output
(GPIO) with programmable interrupt/event generation modes, multiplexed with other peripherals; three
UART interfaces (each with RTS and CTS); two enhanced high-resolution pulse width modulator
(eHRPWM) peripherals; 3 32-bit enhanced capture (eCAP) module peripherals which can be configured
as 3 capture inputs or 3 auxiliary pulse width modulator (APWM) outputs; and 2 external memory
interfaces: an asynchronous and SDRAM external memory interface (EMIFA) for slower memories or
peripherals, and a higher speed DDR2/Mobile DDR controller.
The Ethernet Media Access Controller (EMAC) provides an efficient interface between the device and a
network. The EMAC supports both 10Base-T and 100Base-TX, or 10 Mbits/second (Mbps) and 100 Mbps
in either half- or full-duplex mode. Additionally an Management Data Input/Output (MDIO) interface is
available for PHY configuration. The EMAC supports both MII and RMII interfaces.
The SATA controller provides a high-speed interface to mass data storage devices. The SATA controller
supports both SATA I (1.5 Gbps) and SATA II (3.0 Gbps).
The Universal Parallel Port (uPP) provides a high-speed interface to many types of data converters,
FPGAs or other parallel devices. The UPP supports programmable data widths between 8- to 16-bits on
each of two channels. Single-date rate and double-data rate transfers are supported as well as START,
ENABLE and WAIT signals to provide control for a variety of data converters.
A Video Port Interface (VPIF) is included providing a flexible video input/output port.
The rich peripheral set provides the ability to control external peripheral devices and communicate with
external processors. For details on each of the peripherals, see the related sections later in this document
and the associated peripheral reference guides.
The device has a complete set of development tools for the ARM . These include C compilers, and
scheduling, and a Windows™ debugger interface for visibility into source code execution.
4
AM1808 ARM Microprocessor
Copyright © 2010, Texas Instruments Incorporated
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