音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

CXD9450-25 Datasheet

  • CXD9450-25

  • Single-Chip FaxEngine Product Family

  • 16頁

  • ETC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預覽

Single-Chip FaxEngine Product Family
Single-Chip FaxEngine (CXD9450)
and Integrated Analog Device (CX20415)
The Conexant鈩?Single-Chip FaxEngine product family consists of the Single-Chip
FaxEngine (CXD9450) that contains an embedded modem Digital Signal Processor
(DSP), and a separate Integrated Analog (IA) device (20415).
This device set, along with the supporting firmware and evaluation system,
comprises a complete facsimile machine鈥攏eeding only power supply, scanner, and
printer mechanism components to complete the machine. A system-level block
diagram is shown in
Figure 1
.
Features
Microprocessor and
Bus Interface
鈥?/div>
MC24 Central Processing Unit
鈭?/div>
Up to 10 MHz CPU clock speed
鈭?/div>
Memory efficient input/output bit
manipulation
鈭?/div>
24-bit internal address bus,
8-bit data bus
鈥?/div>
External Bus
鈭?/div>
Address, data, control, status,
and decoded chip select signals
support connection to external
ROM, SRAM, DRAM and
operator panel
鈭?/div>
24-bit external address bus
鈭?/div>
8-bit data bus
鈥?/div>
Chip selects
鈭?/div>
ROMCSn for ROM support
鈭?/div>
CS0n for SRAM
鈭?/div>
CS1n-CS5n for external I/O
鈭?/div>
FCSn for FLASH memory
support
鈭?/div>
LCDCS for LCD support
鈥?/div>
DRAM Controller
鈭?/div>
DRAM is refreshed in Sleep and
Stand-by modes
鈭?/div>
Up to 8 MB supported in two
blocks
鈭?/div>
Organizations supported:
4 or 8-bit
鈭?/div>
Single and page mode access
support
鈥?/div>
Flash memory support
鈭?/div>
NAND and NOR-type support
鈭?/div>
Serial NAND support
鈭?/div>
NOR-type memory up to 2 MB
鈥?/div>
DMA Controller
鈭?/div>
Six dedicated internal DMA
channels for scanner, thermal
printer, and T.4/T.6 access of
internal and/or external
memory.
鈭?/div>
DMA Channel 2 can be
reprogrammed for external
access to plain paper inkjet
printing
Integrated Controller
The integrated controller (SCC) provides the majority of the electronics necessary to
build a thermal or thermal transfer facsimile machine integrated into a one-chip
solution. The controller performs primary facsimile control/monitoring and
compression/decompression functions, and interfaces with fax machine
components such as a scanner, printer, motor, and operator control panel. The
MC24 embedded processor provides an external 16-MB direct memory access
capability. An integrated Pipeline ADC, combined with Conexant's Image
Processing Scheme, provides state of the art image processing performance on text
and gray scale images.
Embedded Modem DSP
The embedded modem DSP supports V.29 and V.27 ter facsimile transmission and
reception, in addition to all basic HDLC functions and T.30 requirements. The
modem allows all line connections and single or dual tone generation and detection.
Optional features such as V.17, voice compression/decompression for Digital
Telephone Answering Machine (DTAM), and duplex speakerphone are also
available.
Figure 1. Single-Chip FaxEngine System Level Block Diagram
Local
Handset
Telephone
Line
Speaker
Phone
DAA
Line IA
Single-Chip FaxEngine (CXD9450)
CCD or CIS
Scanner
Thermal Printer or
Thermal Transfer
Plain Paper
Inkjet Printer
(Optional)
DSP
Secondary
Line IA
Operator
Panel
SCC
24
NOR
FLASH
2 MB
20
Control Bus
Data Bus
Address Bus
8
24
DRAM
8 MB
11
SRAM
1 MB
20
8
ROM
2 MB
20
Data Sheet
Conexant
Doc. No. 100544C
September 8, 2000

CXD9450-25相關型號PDF文件下載

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務：
賣家服務：
技術客服：

0571-85317607

網(wǎng)站技術支持

13606545031

客服在線時間周一至周五
9:00-17:30

關注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！