參數資料
型號: CX81210-31
元件分類: 通信、網絡模塊及開發(fā)工具
英文描述: Telecomm/Datacomm
中文描述: 電信/數據通信
文件頁數: 1/6頁
文件大?。?/td> 135K
代理商: CX81210-31
Product Summary
Conexant
Doc. No. 101884B
June 5, 2002
LAN/Soft V.92 Modem
Combo with Integrated
Physical Layer Device
Set for PCI/Mini PCI
CX81210 Network Controller and CX20493 SmartDAA 3 Line Side
Device
Overview
The Conexant low-cost LAN/Soft V.92 Combo Device set with Conexant’s
integrated physical layer technology and third generation SmartDAA technology
(SmartDAA 3) supports 10/100 Ethernet networking and host-processed V.92
analog data modem with V.44 data compression/14.4 kbps fax modem operation.
By combining the MAC, PHY and modem system side device into one device, this
device set constitutes the most compact, lowest cost Ethernet/soft V.92 chipset in
existence. Only two chips are needed to accomplish the level of communication
functionality that previously took three or even four devices. This device set is ideal
for applications in the notebook, “broadband ready” consumer desktop, and SOHO
desktop PC markets requiring a low-cost, flexible LAN/modem communications
solution.
This device set consists of a CX81210 Network Controller with Integrated Physical
Layer device in a 208-ball fine pitch ball grid array (FPBGA) and a CX20493
SmartDAA 3 Line Side Device (LSD) in a 28-pin quad flat no-lead (QFN) package.
(Table 1). A simplified device set interface is illustrated in Figure 1.
The CX81210 Network Controller contains an integrated PHY device, provides a
direct PCI bus connection to the host processor, and connects to the Conexant
CX20493 SmartDAA 3 device through the OEM-supplied DIB for connecting to the
PSTN/GSTN telephone line in the U.S./Japan/Canada and worldwide.
The CX81210 Network Controller integrates internal circuits into a single VLSI (very
large scale integration) die. Internal circuits include clock, ARM7 processor, PCI
Bus interface logic, control and status registers, ROM, RAM, IEEE 802.3-compliant
Media Access Control (MAC), MII, IEEE 802.3-compliant PHY Transceiver,
SmartDAA 3 system side device (SSD), general purpose input/output registers, and
internal ringwake filter.
Modem data pump and controller functions are processed in a Pentium MMX-
compatible PC using host-signal processing modem software (i.e., soft modem).
In ITU-T V.92/V.90/K56flex data mode, the modem can receive data at speeds up to
56 kbps from a digitally connected V.92/V.90 or K56flex-compatible central site
modem. A V.92/V.90/K56flex modem takes advantage of the PSTN which is
primarily digital except for the client modem to central office local loop and are ideal
for applications such as remote access to an Internet Service Provider (ISP), on-line
service, or corporate site. In this mode, the modem can transmit data at speeds up
to 48 kbps in V.92 mode or up to V.34 rates in V.90 mode.
(Continued on Page 3)
Features
General Features
Optimized integrated LAN
interface/soft V.92 modem for low-
cost solution
IEEE 802.3 10BASE-T and
100BASE-TX MAC and PHY
Host-processed (soft) V.92 modem
Concurrent operation of LAN and
modem functions
Glueless 32-bit PCI master
interface
PXE using BIOS ROM
DMI 2.0 compliant
Integrated power management
functions
Modem hardware incorporates
Conexant SmartDAA technology
and proprietary soft modem
buffering
Dual +3.3 V (analog) and 1.8 V
(digital power supplies for low
power CMOS implementation
(Continued on Page 3)
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