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參數(shù)資料
| 型號(hào)： | LAN9117 |
| 廠商： | SMSC Corporation |
| 英文描述： | HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER |
| 中文描述： | 高性能單芯片10/100非PCI以太網(wǎng)控制器 |
| 文件頁(yè)數(shù)： | 32/131頁(yè) |
| 文件大?。?/td> | 1531K |
| 代理商： | LAN9117 |
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High Performance Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
Revision 1.1 (05-17-05)
32
SMSC LAN9117
DATASHEET
If an 0xA5h is not read from the first address, the EEPROM controller will end initialization. It is then
the responsibility of the host LAN driver software to set the IEEE address by writing to the MAC’s
ADDRH and ADDRL registers.
The host can initiate a reload of the MAC address from the EEPROM by issuing the RELOAD
command via the E2P command (E2P_CMD) register. If the first byte read from the EEPROM is not
A5h, it is assumed that the EEPROM is not present, or not programmed, and the MAC address reload
will fail. The “MAC Address Loaded” bit indicates a successful reload of the MAC address.
3.9.2
EEPROM Host Operations
After the EEPROM controller has finished reading (or attempting to read) the MAC after power-on, hard
reset or soft reset, the host is free to perform other EEPROM operations. EEPROM operations are
performed using the E2P_CMD and E2P data (E2P_DATA) registers.
Section 5.3.23, "E2P_CMD –
EEPROM Command Register," on page 94
provides an explanation of the supported EEPROM
operations.
If the EEPROM operation is the “write location” (WRITE) or “write all” (WRAL) commands, the host
must first write the desired data into the E2P_DATA register. The host must then issue the WRITE or
WRAL command using the E2P_CMD register by setting the EPC_CMD field appropriately. If the
operation is a WRITE, the EPC_ADDR field in E2P_CMD must also be set to the desired location. The
command is executed when the host sets the EPC_BSY bit high. The completion of the operation is
indicated when the EPC_BSY bit is cleared.
If the EEPROM operation is the “read location” (READ) operation, the host must issue the READ
command using the E2P_CMD with the EPC_ADDR set to the desired location. The command is
executed when the host sets the EPC_BSY bit high. The completion of the operation is indicated when
the EPC_BSY bit is cleared, at which time the data from the EEPROM may be read from the
E2P_DATA register.
Other EEPROM operations are performed by writing the appropriate command to the EPC_CMD
register. The command is executed when the host sets the EPC_BSY bit high. The completion of the
operation is indicated when the EPC_BSY bit is cleared. In all cases the host must wait for EPC_BSY
to clear before modifying the E2P_CMD register.
Note:
The EEPROM device powers-up in the erase/write disabled state. To modify the contents of
the EEPROM the host must first issue the EWEN command.
If an operation is attempted, and an EEPROM device does not respond within 30mS, the LAN9117
will timeout, and the EPC timeout bit (EPC_TO) in the E2P_CMD register will be set.
Figure 3.3, "EEPROM Access Flow Diagram" illustrates the host accesses required to perform an
EEPROM Read or Write operation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LAN9117-MD | HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LAN9117-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 |
| 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 |
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