參數(shù)資料
型號(hào)： SAA7219
廠商： NXP Semiconductors N.V.
英文描述： MPEG2 Transport RISC Processor(MPEG2 傳送RISC處理器)
中文描述： 的MPEG2傳輸RISC處理器（RISC的處理器的MPEG2傳送）
文件頁(yè)數(shù)： 3/20頁(yè)
文件大?。?/td> 87K
代理商： SAA7219
2000 Jun 14
3
Philips Semiconductors
Product specification
MPEG2 Transport RISC processor
SAA7219
1
FEATURES
Conditional access descrambling Digital Video
Broadcasting (DVB) compliant and MULTI2 compliant
Stream demultiplexing: Transport Stream (TS),
Packetized Elementary Stream (PES), program and
proprietary streams
Internal 32-bit MIPS RISC based Central Processing
Unit (CPU) supporting MIPS16 instruction set and
running at 81 MHz
Low-power sleep modes supported across the chip
Comprehensive driver software and development tool
support
Package: SQFP208.
1.1
External interfaces
Versatile compressed stream input at 108 Mbits/s
A 32-bit microcontroller extension bus supporting
DRAM, SDRAM, Flash, (E)PROM and external memory
mapped I/O devices. It also supports a synchronous
interface to communicate with the integrated MPEG
Audio Video Graphics Decoder (AVGD) SAA7215 at
40.5 Mbytes.
An IEEE 1284 interface (Centronics) supporting master
and slave modes. Usable as a general purpose port.
An interface to IEEE 1394 devices (such as Philips
PDI 1394 chip-set)
Two UART (RS232) data ports with Direct Memory
Access (DMA) capabilities (187.5 kbits/s) including
hardware flow control signals RXD, TXD, RTS and CTS
for modem support
A Synchronous Serial Interface (SSI) to connect an
off-chip modem analog front-end
An elementary UART with DMA capabilities, dedicated
to front panel devices for instance
Two dedicated smart-card reader interfaces (ISO 7816
compatible) with DMA capabilities
Two I
2
C-bus master/slave transceivers with DMA
capabilities, supporting the standard (100 kbit/s) and
fast (400 kbits/s) I
2
C-bus modes
32 general purpose, bidirectional I/O interface pins, 8 of
which may also be used as interrupt inputs
One Pulse Width Modulated (PWM) output with 8-bit
resolution
A General Purpose/High-Speed (GP/HS) interface
supporting stream recording through IEEE 1394
interface IC
An extended JTAG interface for board test support.
1.2
CPU related features
The SAA7219 contains an embedded RISC CPU, which
incorporates the following features:
A 32-bit PR3930 core running at 81 MHz
8-kbyte, 2-way set associative instruction cache
4-kbyte, 4-way set associative data cache
A programmable low-power mode, including wake-up
on interrupt
A memory management unit with 32 odd/even entries
and variable page sizes
Multiply/accumulate/divide unit with fast
multiply/accumulate for 16-bit and 32-bit operands
Two fully independent 24-bit timers and one 24-bit timer
including watchdog facilities
A real-time clock unit (active in Sleep mode)
Built-in software debug support unit as part of Extended
Enhanced JTAG debug interface
On-chip SRAM of 4 kbytes for storing code which needs
fast execution.
1.3
MPEG2 systems features
Hardware based parsing of Transport Stream (TS),
Philips Semiconductors program and proprietary
software data streams. Maximum input rate is
108 Mbits/s.
A real-time descrambler consisting of 3 modules:
– A control word bank containing 14 pairs (odd, even)
of control words and a default control word
– The DVB descrambler core implementing the stream
decipher and block decipher algorithms
– The MULTI2 descrambler algorithm implementing
the CBC and OFB mode descrambling functions.
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參數(shù)描述
SAA7219HS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:MPEG2 Transport RISC processor
SAA7220 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DIGITAL FILTER FOR COMPACT DISC DIGITAL AUDIO SYSTEM
SAA7221 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
SAA7221HS 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
SAA7221HS/C1 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Integrated MPEG AVGD decoders
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