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參數(shù)資料
| 型號： | DS3131 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Telecom IC:Other |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, PBGA256 |
| 封裝： | 27 X 27 MM, PLASTIC, BGA-256 |
| 文件頁數(shù)： | 22/174頁 |
| 文件大?。?/td> | 1261K |
| 代理商： | DS3131 |
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DS3131
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- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 1; Bits 20 to 21/Priority State (PRIST). This field is used by the transmit DMA to keep track of queued
priority descriptors as they arrive from the pending queue, and for the DMA to know when it should create a
horizontal linked list of transmit priority descriptors and where it can find the next valid priority descriptor. This
field handles priority packets and the PENDST field handles standard packets.
State
Next Priority Descriptor Pointer Field
Next Priority Pending Descriptor Pointer Field
00
Not Valid
01
Valid
Not Valid
10
Not Valid
Valid
11
Valid
-FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 1; Bit 22/ Processing Priority Packet (PPP). This bit is set to 1 when the DMA is currently processing a
priority packet.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 1; Bits 23 to 31/Unused. This field is not used by the DMA and could be any value when read.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 2; Bits 0 to 15/Next Descriptor Pointer. This 16-bit value is the offset from the transmit descriptor base
address of the next transmit packet descriptor for the packet that is currently being transmitted. Only valid if
EOF = 0 or if EOF = 1 and CV = 1.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 2; Bits 16 to 31/Start Descriptor Pointer. This 16-bit value is the offset from the transmit descriptor base
address of the first transmit packet descriptor for the packet that is currently being transmitted. If DQS = 0, then
this pointer is written back to the done queue when the packet has completed transmission. This field is used by
the DMA for processing standard as well as priority packets.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 3; Bits 0 to 15/Next Pending Descriptor Pointer. This 16-bit value is the offset from the transmit
descriptor base address of the first transmit packet descriptor for the packet that is queued up next for
transmission.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 3; Bits 16 to 31/Last Pending Descriptor Pointer. This 16-bit value is the offset from the transmit
descriptor base address of the first transmit packet descriptor for the packet that is queued up last for transmission.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 4; Bits 0 to 15/Next Priority Descriptor Pointer. This 16-bit value is the offset from the transmit
descriptor base address of the next transmit priority packet descriptor for the priority packet that is currently being
transmitted. Only valid if EOF = 0 or if EOF = 1 and CV = 1.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 4; Bits 16 to 31/Unused. This field is not used by the DMA and could be any value when read.
- FOR DMA USE ONLY/HOST CAN ONLY READ THIS FIELD -
dword 5; Bits 0 to 15/Last Priority Pending Descriptor Pointer. This 16-bit value is the offset from the
transmit descriptor base address of the first transmit priority packet descriptor for the priority packet that is queued
up last for transmission.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS3134 | DATACOM, FRAMER, PBGA256 |
| DS3150QN | DATACOM, PCM TRANSCEIVER, PQCC28 |
| DS3150Q | DATACOM, PCM TRANSCEIVER, PQCC28 |
| DS3150TN | DATACOM, PCM TRANSCEIVER, PDIP48 |
| DS3150T | DATACOM, PCM TRANSCEIVER, PQFP48 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS3131DK | 功能描述:通信集成電路 - 若干 RoHS:否 制造商:Maxim Integrated 類型:Transport Devices 封裝 / 箱體:TECSBGA-256 數(shù)據(jù)速率:100 Mbps 電源電壓-最大:1.89 V, 3.465 V 電源電壓-最小:1.71 V, 3.135 V 電源電流:50 mA, 225 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| DS3134 | 功能描述:IC CTRLR HDLC CHATEAU 256-BGA RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A |
| DS-313PIN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Miscellaneous |
| DS-313-PIN | 功能描述:信號調(diào)節(jié) RoHS:否 制造商:EPCOS 產(chǎn)品:Duplexers 頻率:782 MHz, 751 MHz 頻率范圍: 電壓額定值: 帶寬: 阻抗:50 Ohms 端接類型:SMD/SMT 封裝 / 箱體:2.5 mm x 2 mm 工作溫度范圍:- 30 C to + 85 C 封裝:Reel |
| DS31400 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:8-Input, 14-Output, Dual DPLL Timing IC with Sub-ps Output Jitter |
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