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TM-1000 Datasheet(PDF) 5 Page - NXP Semiconductors

Part # TM-1000
Description  Programmable Media Processor
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

TM-1000 Datasheet(HTML) 5 Page - NXP Semiconductors

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AUDIO INPUT AND AUDIO OUTPUT
The TM-1000 incorporates audio input (AI) and audio output (AO)
units which use autonomous DMA to service datastreams required by
common serial audio DAC and ADC chips. Both units support glue-
less I/O of stereo 16-bit audio data at sample rates up to 100 kHz.
A small amount of glue logic enables output of up to eight channels.
The audio interfaces are highly programmable, providing adaptability
to custom protocols and future standards.
TM-1000’s audio interfaces can be programmed to provide the master
clock to over-sampled ADCs and DACs. The clock generated on chip
can be controlled with a resolution of .0006 ppm. This high resolution
gives programmers subtle control over sampling frequency allowing
them to simplify the synchronization algorithms required in complex
multimedia systems.
IMAGE COPROCESSOR
The image coprocessor (ICP) offloads the TriMedia CPU of image
processing and manipulation tasks such as copying an image from
SDRAM to a host’s video frame buffer. It can operate as either a mem-
ory-to-memory or a memory-to-PCI coprocessor device. In memory-
to-memory mode, the ICP can perform horizontal or vertical image
filtering and scaling. In memory-to-memory and memory-to-PCI
modes, it can perform horizontal scaling and filtering followed by
YUV to RGB color-space conversion for screen display.
The ICP also provides display support for live video in overlapping
windows, the number and sizes of which are limited only by band-
width. The final resampled and converted image pixels are transmitted
over the PCI bus to an optional off-chip graphics card/frame buffer.
VARIABLE LENGTH DECODER
TM-1000’s variable length decoder (VLD) offloads the processing-
intensive task of decoding Huffman-encoded video datastreams such
as MPEG-1 and MPEG-2. The lower bit rate required by videoconfer-
encing applications can be adequately handled by the TriMedia CPU
without the coprocessor.
I2C INTERFACE
TM-1000’s I2C interface enables inter-chip connection to and control
of other I2C devices. This allows TM-1000 to configure and inspect
status of peripheral video devices such as video decoders and encoders
and some camera types. It is also used at boot time to read the boot
program from the EPROM.
SYNCHRONOUS SERIAL INTERFACE
TM-1000’s synchronous serial interface (SSI) provides serial access for
a variety of multimedia applications, such as video phones or video-
conferencing, and for general data communications in PC systems.
The SSI contains all the buffers and logic necessary to interface with
simple analog modem front ends. When combined with the TriMedia
V.34 software library, the SSI provides fully V.34-compliant modem
capability. The TriMedia CPU performs the data pump, fax protocols,
AT command handling, and error correction/detection. Alternatively,
the TM-1000 SSI can connect to an ISDN interface chip to provide
advanced digital modem capabilities.
TIMERS
The TM-1000 contains four timers: three are available to program-
mers, the fourth is reserved for the system.
HIGH-SPEED PCI BUS INTERFACE
TM-1000’s PCI interface connects the VLIW CPU and on-chip I/O
and coprocessing units to a PCI bus. In PC-based applications,
TM-1000 can gluelessly interface to the standard PCI bus, allowing it
to be placed directly on the PC mainboard or on a plug-in card. In
embedded applications where TM-1000 is the main processor, the
PCI bus can be used to interface to peripheral devices that implement
functions not provided by on-chip peripherals.
The first member of the TriMedia family, the TM-1000 is designed for
use both as a coprocessor in a PC-hosted environment and the sole
CPU in standalone systems .
HOST-ASSISTED COPROCESSOR
STANDALONE
SDRAM
AUDIO
AUDIO
CAMERA
VCR
TV MONITOR
PCI BUS
HOST CPU
MEMORY
GRAPHIC
CARD
RGB IMAGE SEQUENCES
SDRAM
AUDIO
AUDIO
CAMERA
VCR
TV MONITOR
PCI BUS
ROM/FLASH
PERIPHERAL
PERIPHERAL


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