19-4750; Rev 1; 07/11 66 of 194 The CPU process of Reading the RXP CPU packets can be polling b" />
參數(shù)資料
型號: DS34S132GN+
廠商: Maxim Integrated Products
文件頁數(shù): 158/194頁
文件大小: 0K
描述: IC TDM OVER PACKET 676-BGA
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 40
功能: TDM-over-Packet(TDMoP)
接口: TDMoP
電路數(shù): 1
電源電壓: 1.8V, 3.3V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 676-BGA
供應商設備封裝: 676-PBGA(27x27)
包裝: 管件
其它名稱: 90-34S13+2N0
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頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁當前第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁
DS34S132 DATA SHEET
19-4750; Rev 1; 07/11
66 of 194
The CPU process of Reading the RXP CPU packets can be polling based using the EMA.RSR1.RFRS status bit or
interrupt driven using the EMA.RSRL1.RFRSL (latched status) and EMA.RSRIE1.RFRIE (Interrupt enable) register
bits. When the CPU detects that a packet is waiting in the RXP CPU FIFO, the CPU must specify the read
operation (EMA.RCR.RPCRC = 110b), specify the read transfer length in Dwords (EMA.RCR.TL) and then begin
reading the data at EMA.RDR.EMRD. The EMA.RCR.TL value specifies how many Dwords are transferred from
the RXP CPU Queue to the RXP CPU FIFO.
The smallest possible RXP Packet Read is 19 Dwords for a 64-byte Ethernet Packet with the 4-byte FCS removed,
3-Dword Header Descriptor and 2-byte Dummy Fill appended to the beginning of the packet. The initial Transfer
Length for each packet can be any value from 1 to 18. The first Dword of the Header Descriptor that is Read by the
CPU identifies the length of the RXP CPU Packet. This is used to determine how many remaining Dwords must be
transferred from the RXP CPU Queue to the RXP CPU FIFO and then Read by the CPU. Each successive Read
Transfer at EMA.RDR.EMRD causes the S132 to update the register with the next Dword in the RXP CPU FIFO.
The EMA.RSR1, EMA.RSR2, EMA.RSRL1 and EMA.RSRIE1 registers provide other control and status bits for the
SDRAM RXP CPU Queue and the RXP CPU FIFO.
9.4.2 TXP CPU Packet Interface
The CPU writes each TXP CPU packet into an S132 staging TXP CPU FIFO and then controls the Writing
(transfer) of the packet to the TXP CPU Queue in the SDRAM. The TXP CPU FIFO can hold 1 packet. The TXP
CPU Queue can hold up to 512 packets. The S132 transmits each packet in the TXP CPU Queue when the
Ethernet Port is not busy transmitting PW packets.
The TXP CPU packets from the CPU must include all of the fields that will be transmitted at the Ethernet Port
including the Ethernet and Application Headers, but not including the Ethernet FCS. Each TXP CPU packet can be
2 Kbytes in length. The CPU must also append a TXP Header Descriptor to the beginning of each packet with
information about the packet. The format of the packet and TXP Header Descriptor are provided in Figure 9-27.
Figure 9-27. Stored TXP CPU Packet and Header Descriptor
3
1
3
0
2
9
2
8
2
7
2
6
2
5
2
4
2
3
2
1
2
0
1
9
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
0 9 8 7 6 5 4 3 2 1 0
1 Dword - Header Control
2-bytes of Dummy Fill = 0x00.00
Entire TXP CPU packet from …
… the Ethernet Destination Address to the end of Ethernet Payload but not including the Ethernet FCS
The TXP CPU Header Control is a single 32-bit Dword as depicted in Table 9-15.
Table 9-15. TXP CPU Header Control
Field
Bit [x:y] Description
TXPLEN [31:21]
TXP Packet Length. The length (in bytes) of the complete TXP CPU Packet from the
Ethernet DA to the end of the Ethernet Payload (not including the Ethernet FCS).
TXOTSO [20:12]
TXP OAM Timestamp Offset = Dword position for TXP OAM Timestamp in Ethernet packet.
TXOTSO = (“Timestamp starting byte position in Ethernet packet” - 2) ÷ 4
TXOTSE [11]
TXP OAM Timestamp Enable. 1 = insert TXP OAM Timestamp; 0 = disabled.
TXAOFF [10:6]
TXP UDP/IP Application Offset = Dword position of IP Header in Ethernet packet.
TXAOFF = (“IP Header starting byte position in Ethernet packet” - 2) ÷ 4
TXUDP
[5]
TXP UDP Header FCS Modify Enable. 1 = insert UDP FCS (only valid if TXIPV4 = 1 or
TXIPV6 = 1).
TXIPV6 [4]
TXP IPv6 Header Exists. 1 = header includes IPv6; 0 = not IPv6.
TXIPV4 [3]
TXP IPv4 Header Exists. 1 = header includes IPv4 (S132 will insert IP FCS); 0 = not IPv4.
RSVD
[2:0]
Reserved.
The S132 can be programmed to add a 32-bit TXP OAM Timestamp to a TXP CPU Packet. One example use for
the TXP OAM Timestamp is described in RFC5087 Appendix D (TDMoIP Performance Monitoring Mechanisms).
相關PDF資料
PDF描述
DS34T102GN+ IC TDM OVER PACKET 484TEBGA
DS3501U+H IC POT NV 128POS HV 10-USOP
DS3502U+ IC POT DGTL NV 128TAP 10-MSOP
DS3503U+ IC POT DGTL NV 128TAP 10-MSOP
DS3897MX IC TXRX BTL TRAPEZIODAL 20-SOIC
相關代理商/技術(shù)參數(shù)
參數(shù)描述
DS34S132GN+ 功能描述:通信集成電路 - 若干 32Port TDM-Over-Pack Transport Device 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
DS34S132GNA2+ 功能描述:通信集成電路 - 若干 32Port TDM-Over-Pack Transport Device 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
DS34T101 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single/Dual/Quad/Octal TDM-over-Packet Chip
DS34T101_08 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single/Dual/Quad/Octal TDM-over-Packet Chip
DS34T101_09 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Single/Dual/Quad/Octal TDM-over-Packet Chip