您现在所在的是:

串口通信

回帖:0个,阅读:1213 [上一页] [1] [下一页]
1006
chushaohua
文章数:12
年度积分:50
历史总积分:1006
注册时间:2006/1/25
发站内信
发表于:2006/1/25 13:23:00
#0楼
阶段工控MODEM芯片大多为歐美产品,性价比值得商榷.
DAVICOM(台湾联杰国际)www.davicom.com.tw 的DM562P,
该款IC由两个芯片组成,DM6588A:128-pin/QFP,DM6580:48-pin/LQFP
56K V.90 內置驱动器  FAX(T.30 T.31) Linux驱动文件,芯片价格低于市场体系的百分之三十.
Features
   Compatibility

- ITU-T V.90 (56000 to 28000 bps)
- ITU-T V.34 (33600 to 2400 bps)
- CCITT  V.32bis   (14400,  12000,   9600,
7200, 4800bps)
- CCITT V.32 (9600, 4800bps)
- CCITT V.22bis (2400, 1200bps)
- CCITT V.22 (1200bps)
- CCITT V.23 (1200/75bps)
- CCITT V.21 (300bps)
- Bell 212A (1200bps)
- Bell 103 (300bps)

   Fax

- CCITT V.17 (14400, 12000,
9600,7200bps)
- CCITT V.29 (9600, 7200bps)
- CCITT V.27ter (4800, 2400bps)
- CCITT V.21 Channel 2 (300bps)
- Group III, Class 1

   Data Error Correction

-   MNP Class 4
- CCITT V.42 LAPM

  Data Compression

-   MNP Class5
-   CCITT V.42bis

   Voice compression

- 2,3 and 4 bit ADPCM
-   IMA ADPCM (Developing)
-   8 Bit PCM

   DTE Interface

- DTE speed up to 115200bps


Enhanced “AT” command set and S registers

- TIA/EIA 602, ITU V.25 ter AT command
Set
- TIA/EIA 578 Fax Class 1 command set
-
- TIA/EIA IS-101 Voice command set

     Integrated UART 16550

     Serial interfaces
- 6, 7 and 8 bit character support
- Even, odd, mark and none parity detection and generation
- 1 and 2 stop bit support
- Auto DTE data speed detection through
“AT”
      Parallel interfaces (PCI)
-  PCI Plug and Play (PnP) support
-  Compliant with PCI specification 2.1
-  Compliant with the Advanced
Configuration and
-  ower Interface Specification(ACPI) revision
1.0
-  Compliant with PCI bus Power
Management Interface Specification
 revision 1.0

Caller identification (Caller ID) support

     Speakerphone

Selectable world wide call progress tone detection

Enhanced 8032 compatible micro-controller

      Power down mode

Access up to 256K bytes external program memory

Access up to 64K bytes external data memory NVRAM to store two user configurable, selectable profiles with three programmable telephone numbers

32K bytes SRAM built in
有需要技术资料的朋友,可以与我联系:chushaohua88@163.com
表情表情

关于我们 | 联系我们 | 广告服务 | 本站动态 | 友情链接 | 法律声明 | 非法和不良信息举报

工控网客服热线:0755-86369299
版权所有 工控网 Copyright©2025 Gkong.com, All Rights Reserved

46.8003