參數(shù)資料
型號： LAN9117-MD
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 微控制器/微處理器
英文描述： HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER
中文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封裝： TQFP-100
文件頁數(shù)： 62/131頁
文件大?。?/td> 1531K
代理商： LAN9117-MD
High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
Revision 1.1 (05-17-05)
62
SMSC LAN9117
DATASHEET
Chapter 4 Internal Ethernet PHY
4.1
Top Level Functional Description
Functionally, the internal PHY can be divided into the following sections:
■
100Base-TX transmit and receive
■
10Base-T transmit and receive
■
Internal MII interface to the Ethernet Media Access Controller
■
Auto-negotiation to automatically determine the best speed and duplex possible
■
Management Control to read status registers and write control registers
Figure 4.1 100Base-TX Data Path
4.2
100Base-TX Transmit
The data path of the 100Base-TX is shown in
Figure 4.1
. Each major block is explained below.
4.2.1
4B/5B Encoding
The transmit data passes from the MII block to the 4B/5B encoder. This block encodes the data from
4-bit nibbles to 5-bit symbols (known as “code-groups”) according to
Table 4.1
. Each 4-bit data-nibble
is mapped to 16 of the 32 possible code-groups. The remaining 16 code-groups are either used for
control information or are not valid.
The first 16 code-groups are referred to by the hexadecimal values of their corresponding data nibbles,
0 through F. The remaining code-groups are given letter designations with slashes on either side. For
example, an IDLE code-group is /I/, a transmit error code-group is /H/, etc.
The encoding process may be bypassed by clearing bit 6 of register 31. When the encoding is
bypassed the 5
th
transmit data bit is equivalent to TX_ER.
MAC
Tx
Driver
MLT-3
Converter
NRZI
Converter
4B/5B
Encoder
Magnetics
CAT-5
RJ45
100M
PLL
Internal
MII 25 MHz by 4 bits
TX_CLK
25MHz by
5 bits
NRZI
MLT-3
MLT-3
MLT-3
MLT-3
Scrambler
and PISO
125 Mbps Serial
MII
25MHz
by 4 bits
相關(guān)PDF資料
PDF描述
LAN9117-MT HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER
LAN9118 HIGH PERFORMANCE SINGLE CHIP 10/100NON PCI ETHERNET CONTROLLER
LAN9118-MD HIGH PERFORMANCE SINGLE CHIP 10/100NON PCI ETHERNET CONTROLLER
LAN9118-MT HIGH PERFORMANCE SINGLE CHIP 10/100NON PCI ETHERNET CONTROLLER
LAN91C100-FD-SS FEAST Fast Ethernet Controller with Full Duplex Capability
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LAN9117-MT 功能描述:以太網(wǎng) IC HiPerfrm Sngl-Chip 10/100 Ethrnt RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
LAN9118 制造商:SMSC 制造商全稱:SMSC 功能描述:High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
LAN9118_05 制造商:SMSC 制造商全稱:SMSC 功能描述:High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
LAN9118_07 制造商:SMSC 制造商全稱:SMSC 功能描述:High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
LAN9118-MD 功能描述:以太網(wǎng) IC HiPerfrm Sngl-Chip 10/100 Ethrnt RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
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