- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16271 > 78Q8430EBST#DB (Maxim Integrated Products)EVAL BOARD 78Q8430 PDF資料下載
參數(shù)資料
| 型號： | 78Q8430EBST#DB |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 32/88頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVAL BOARD 78Q8430 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁當(dāng)前第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁
78Q8430 Data Sheet
DS_8430_001
38
Rev. 1.2
6.7.2
Configuring the CAM
The CAM rules are accessed indirectly one at a time via the CAM Address Register (CAR). The contents
of the rule whose number is indicated by the CAR are available for read and write via the Rule Match
reference word must match in order to trigger the rule, and the RCR contains the control word that is
passed to the control logic when the rule is triggered.
6.7.2.1
Rule Match Register
The RMR contains four fields that control when a rule is triggered: Previous Hit Match and Previous Hit
Mask, Data Match and Data Mask. The mask fields are used to determine which bits in their respective
match field are required to make a match and which bits are ignored. A mask bit value of one means that
the corresponding match bit must be exactly equal to the same bit in the CAM reference word to trigger
the rule. Inversely, a mask bit value of zero means that the corresponding bit in the CAM reference word
is ignored. A special case is that all previous hit mask bits are zero. In this case, the rule is deactivated
and can never be triggered.
6.7.2.2
Rule Control Register
The RCR contains four fields that control the actions taken by the control logic when the rule is triggered:
Byte Offset, Interrupt, Action and Match Control fields.
RCR Byte Offset
The Byte Offset field is generally used to skip over bytes in the frame that are not relevant to the current
classification. When the Byte Offset is non-zero then the classification will skip the number of bytes
indicated. The exception is when the TOC action is used, in which case, the value of the Byte Offset field
is used to initialize the control logic counter and no offset is applied.
An offset value of 0x3F will skip just the right number of bytes to jump over the current IPv4 header.
RCR Interrupt
When the Interrupt bit in the RCR for a given rule is set, then the triggering of the rule will cause an HIR
classification interrupt.
Control Logic Action
The value of the control logic Action field in the RCR determines the action that will be taken by the
control logic when the rule is triggered.
Table 26: Control Logic Actions
Hex
Value
Binary
Value
Name
Action Taken
0x0
00000b
NOP
No action taken.
0x2
00010b
PAUSE
Start the local pause timer.
0x4
00100b
WAKE
Send a wake-up signal to the host and start the HNR timer.
0x6
00110b
IPCK
Start the IP header checksum check and the IP header counter.
0x7
00111b
TIPO
Transfer IP header counter to offset.
0x8
01000b
TDX
‘X’ is assigned the value of the frame data.
0xA
01010b
TAX
‘X’ is assigned the value of the current rule number.
0xC
01100b
TAXH
The high-order nibble of ‘X’ is assigned the value of the low-order nibble
of the current rule number.
0xD
01110b
TAXL
The low-order nibble of ‘X’ is assigned the value of the low-order nibble
of the current rule number.
0x10
10000b
TXA
The classification result is assigned the value of ‘X’.
0x12
10010b
TLXA
The low-order nibble of the classification result is assigned the value of
the low-order nibble of ‘X’.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CM453232-R18KL | INDUCTOR 180NH 700MA SMD |
| REC15-1205D/H3 | CONV DC/DC 15W 12VIN +/-05VOUT |
| VI-JWL-EZ-F3 | CONVERTER MOD DC/DC 28V 25W |
| A3BKB-2406G | IDC CABLE- ASR24B/AE24G/APK24B |
| REC15-2415D/H3 | CONV DC/DC 15W 24VIN +/-15VOUT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 78Q8430STEM#DB | 功能描述:以太網(wǎng)開發(fā)工具 3-in-1 Silicon Delay Line RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓: |
| 78-R3 | 功能描述:3M SCOTCHCAST REENTERABLE SIGNAL 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| 78-R4 | 功能描述:3M SCOTCHCAST REENTERABLE SIGNAL 制造商:3m 系列:* 零件狀態(tài):在售 標(biāo)準(zhǔn)包裝:1 |
| 78RB02 | 功能描述:SWITCH 2 POS DIP RECESSED UNSLD RoHS:否 類別:開關(guān) >> DIP 系列:78 特色產(chǎn)品:RDM Series Rotary DIP Switch 標(biāo)準(zhǔn)包裝:70 系列:RDM 電路:十六進(jìn)制 位置數(shù):16 觸點(diǎn)額定電壓:0.1A @ 42VDC 觸動器類型:用于工具旋轉(zhuǎn) 觸動器電平:凹槽式 安裝類型:通孔 方向:頂部觸動 可清洗:是 其它名稱:EG4977-5RDMAR16PIT |
| 78RB02RA | 制造商:Grayhill 功能描述:DIP, 2 POS, FLUSH ACTUATOR, SPST, GOLD - Rail/Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。