參數(shù)資料
型號： IDT88P8341BHI
廠商： IDT, Integrated Device Technology Inc
文件頁數(shù)： 26/96頁
文件大?。?/td> 0K
描述： IC SPI3-SPI4 EXCHANGE 820-PBGA
標(biāo)準(zhǔn)包裝： 24
系列： *
其它名稱： 88P8341BHI
32
IDT88P8341 SPI EXCHANGE SPI-3 TO SPI-4
INDUSTRIALTEMPERATURERANGE
APRIL 10, 2006
SPI-4 ingress to SPI-3 egress flow control
The SPI-4 control information is transmitted to the adjacent device. The
adjacent device determines which LP to service next according to the status
information it receives from the IDT88P8341. The SPI-4 ingress data arrive in
bursts that are of equal length except for the last burst of a packet which may
be shorter.
The SPI-4 burst data is transferred to the per LID allocated buffer segments.
The addition of the data may cause an update of the SPI-4 status information
(starving,hungry,satisfied),andmaychangetheSPI-3STPA,DTPA,orPTPA
signals when in PHY mode.
Forthecontrolinformationtherearetwoseparatecasestoconsider:thecase
thattheSPI-3isconfiguredtoLinkmode,andthecasethattheSPI-3isconfigured
to PHY mode.
When in PHY mode, the data is sent according the availability of the data in
the buffer segment pool. In the Link mode an extra consideration is taken to
account – that of the fill level of the ingress FIFOs in the adjacent device.
Backpressure threshold
- Number of free segments allocated to trigger backpressure for the LP
The diagram below shows the SPI-4 to SPI-3 flow control path through the
IDT88P8341 device.
Figure 20. SPI-4 ingress to SPI-3 egress flow control
…
JTAG
uproc
LID Counters Memory
SPI-3
8 bit / 32 bit
Min: 19.44MHz
Max: 133MHz
Interface
Bloc
k
Chip Counters Memory
Interface
Bloc
k
SPI-3 /
LID map
Main
Memory
A
SPI-4.2
Min: 80 MHz
Max:400 MHz
SPI-4 /
LID map
6372 drw21
STATUS
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參數(shù)描述
IDT88P8342BHGI 功能描述:IC SPI3-SPI4 EXCHANGE 820-PBGA RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
IDT88P8342BHI 功能描述:IC SPI3-SPI4 EXCHANGE 820-PBGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
IDT88P8344 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:SPI EXCHANGE 4 x SPI-3 TO SPI-4 Issue 1.0
IDT88P8344BHGI 功能描述:IC SPI3-SPI4 EXCHANGE 820-PBGA RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
IDT88P8344BHI 功能描述:IC SPI3-SPI4 EXCHANGE 820-PBGA RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
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