參數(shù)資料
型號(hào)： LAN91C110
廠商： STANDARD MICROSYSTEMS CORP
元件分類： 微控制器/微處理器
英文描述： FEAST FAST ETHERNET CONTROLLER FOR PCMCIA AND GENERIC 16-BIT APPLICATIONS
中文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP144
封裝： 1 MM HEIGHT, TQFP-144
文件頁(yè)數(shù)： 27/55頁(yè)
文件大?。?/td> 482K
代理商： LAN91C110
FEAST Fast Ethernet Controller
for PCMCIA and Generic 16-Bit Applications
SMSC DS – LAN91C110 REV. B
Page 27
Rev. 09/05/02
1. Allocate Command
2. Poll ALLOC_INT bit until set
3. Read Allocation Result Register
ALLOCATED PACKET NUMBER - Packet number associated with the last memory allocation request. The value is only
valid if the FAILED bit is clear.
Note
: For software compatibility with future versions, the value read from the ARR after an allocation request is intended
to be written into the PNR as is, without masking higher bits (provided FAILED = 0).
BANK 2
OFFSET
NAME
4
FIFO PORTS REGISTER
This register provides access to the read ports of the Receive FIFO and the Transmit completion FIFO. The packet
numbers to be processed by the interrupt service routines are read from this register.
TYPE
SYMBOL
FIFO
READ ONLY
HIGH
BYTE
REMPTY
0
RX FIFO PACKET NUMBER
1
0
0
0
0
0
0
LOW
BYTE
TEMPTY
0
TX FIFO PACKET NUMBER
1
0
0
0
0
0
0
0
REMPTY - No receive packets queued in the RX FIFO. For polling purposes, uses the RCV_INT bit in the Interrupt Status
Register.
TOP OF RX FIFO PACKET NUMBER - Packet number presently at the output of the RX FIFO. Only valid if REMPTY is
clear. The packet is removed from the RX FIFO using MMU Commands 3) or 4).
TEMPTY - No transmit packets in completion queue. For polling purposes, uses the TX_INT bit in the Interrupt Status
Register.
TX FIFO PACKET NUMBER - Packet number presently at the output of the TX FIFO. Only valid if TEMPTY is clear. The
packet is removed when a TX INT acknowledge is issued.
Note:
For software compatibility with future versions, the value read from each FIFO register is intended to be written into
the PNR as is, without masking higher bits (provided TEMPTY and REMPTY = 0 respectively).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LAN91C110-JD 制造商:SMSC 功能描述:
LAN91C110-PU 功能描述:以太網(wǎng) IC Non-PCI 10/100 Ethernet MAC 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
LAN91C110TQFP 功能描述:以太網(wǎng) IC Non-PCI 10/100 Ethernet MAC 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
LAN91C110-TQFP 制造商:SMSC 功能描述:
LAN91C111 制造商:SMSC 制造商全稱:SMSC 功能描述:10/100 Non-PCI Ethernet Single Chip MAC + PHY
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