參數(shù)資料
型號： LAN9116
廠商： SMSC Corporation
英文描述： Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
中文描述： 高效的單芯片10/100非PCI以太網(wǎng)控制器
文件頁數(shù)： 77/126頁
文件大?。?/td> 831K
代理商： LAN9116
Highly Efficient Single-Chip 10/100 Non-PCI Ethernet Controller
Datasheet
SMSC LAN9116
77
Revision 1.1 (05-17-05)
DATASHEET
5.3.9.1
Allowable settings for Configurable FIFO Memory Allocation
TX and RX FIFO space is configurable through the CSR - HW_CFG register defined above. The user
must select the FIFO allocation by setting the TX FIFO Size (TX_FIF_SZ) field in the hardware
configuration (HW_CFG) register. The TX_FIF_SZ field selects the total allocation for the TX data path,
including the TX Status FIFO size. The TX Status FIFO size is fixed at 512 Bytes (128 TX Status
DWORDs). The TX Status FIFO length is subtracted from the total TX FIFO size with the remainder
being the TX data FIFO Size. Note that TX data FIFO space includes both commands and payload
data.
RX FIFO Size is the remainder of the unallocated FIFO space (16384 bytes – TX FIFO Size). The RX
Status FIFO size is always equal to 1/16 of the RX FIFO Size. The RX Status FIFO length is subtracted
from the total RX FIFO size with the remainder being the RX data FIFO Size.
For example, if TX_FIF_SZ = 6 then:
Total TX FIFO Size = 6144 Bytes (6KB)
TX Status FIFO Size = 512 Bytes (Fixed)
TX Data FIFO Size = 6144 – 512 = 5632 Bytes
RX FIFO Size = 16384 – 6144 = 10240 Bytes (10KB)
RX Status FIFO Size = 10240 / 16 = 640 Bytes (160 RX Status DWORDs)
RX Data FIFO Size = 10240 – 640 = 9600 Bytes
Table 5.3
shows every valid setting for the TX_FIF_SZ field. Note that settings not shown in this table
are reserved and should not be used.
Note:
The RX data FIFO is considered full 4 DWORDs before the length that is specified in the
HW_CFG register.
Table 5.3 Valid TX/RX FIFO Allocations
TX_FIF_SZ
TX DATA FIFO
SIZE (BYTES)
TX STATUS FIFO
SIZE (BYTES)
RX DATA FIFO
SIZE (BYTES)
RX STATUS FIFO
SIZE (BYTES)
2
1536
512
13440
896
3
2560
512
12480
832
4
3584
512
11520
768
5
4608
512
10560
704
6
5632
512
9600
640
7
6656
512
8640
576
8
7680
512
7680
512
9
8704
512
6720
448
10
9728
512
5760
384
11
10752
512
4800
320
12
11776
512
3840
256
13
12800
512
2880
192
14
13824
512
1920
128
相關(guān)PDF資料
PDF描述
LAN9117 HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LAN9116-MD 功能描述:以太網(wǎng) IC Efficient 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
LAN9116-MT 功能描述:以太網(wǎng) IC Ethernet IC 32bit Superior Perf 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 制造商:SMSC 制造商全稱:SMSC 功能描述:HIGH PERFORMANCE SINGLE-CHIP 10/100 NON-PCI ETHERNET CONTROLLER
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
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