參數(shù)資料
型號: PM8621-BIAP
廠商: PMC-SIERRA INC
元件分類: 數(shù)字傳輸電路
英文描述: NSE-8G⑩ Standard Product Data Sheet Preliminary
中文描述: ATM/SONET/SDH SUPPORT CIRCUIT, PBGA480
封裝: 35 X 35 MM, 1.47 MM HEIGHT, UBGA-480
文件頁數(shù): 169/184頁
文件大?。?/td> 1122K
代理商: PM8621-BIAP
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頁當(dāng)前第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
NSE-8G Standard Product Data Sheet
Preliminary
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
Document ID: PMC-2010850, Issue 1
168
13.2
Transmit Interface Timing
Figure 36 below shows the delay from assertion of RC1FP to the transmit serial data links. Due to
the presence of FIFOs in the data path, the delay to the various links can differ by up to eight
cycles. The minimum delay (RC1DLY + 43 SYSCLK cycles) is shown to be incurred by one of
the transmit protect serial data links (TP[X]/TN[X]). The maximum delay (RC1DLY + 51 cycles)
is shown to be incurred by one of the transmit auxiliary serial data links (TP[Y]/TN[Y]). The
suggested setting for TC1DLY results in a TC1FP pulse at the time at which all the transmit serial
links have transmitted their respective C1 characters. The maximum delay from RC1FP to the
transmission of a C1 pulse is RC1DLY + 52 cycles. Therefore the suggested setting for TC1DLY
is RC1DLY+ 52. Figure 36 shows the timing of TC1FP with the suggested setting for TC1DLY.
The relative phases of the links in Figure 36 are shown for illustrative purposes only. Links may
have different delays than what is shown.
Figure 37 Transmit Interface Timing
TP[
X
]/
TN[
X
]
TN[
Y
]/
TP[
Y
]
...
SYSCLK
RC1FP
S4,3/
A2
S1,1/J0
S2,1/
Z0
S4,3/
A2
S1,1/
C1
S2,1/
Z0
RC1DLY+ Max Delay(51 cycles) to Last C1
...
...
RC1DLY + Min Delay(43
cycles) to First C1
...
...
...
...
TC1FP
Figure 37 below shows the delay from CMP to the transmit serial data links. CMP is valid only at
the RC1FP pulse time, whether RC1FP is pulsed or not. It is ignored at other locations in the
transport frame. A change in value to the connection memory page signal (CMP) results in
changing the active switch settings. Given that CMP is sampled on the RC1FP pulse time, the
first data that is switched according to the newly selected connection memory page are the first
A1 bytes of the frame following the C1 bytes transmitted by the NSE-8G before offset RC1DLY
+ 52 cycles. In more absolute terms, the first A1s transmitted by the NSE-8G between offset
RC1DLY + 43 + 9696 cycles and RC1DLY + 51 + 9696 cycles, represent the first data switched
according the connection memory page selected by CMP at the RC1FP pulse time.
...
TC1DLY (RC1DLY + Delay to TC1FP(52 cycles))
相關(guān)PDF資料
PDF描述
PM9311 Enhanced TT1TM Switch Fabric
PM9311-UC ENHANCED TT1⑩ SWITCH FABRIC
PM9312 Enhanced TT1TM Switch Fabric
PM9312-UC ENHANCED TT1⑩ SWITCH FABRIC
PM9313 Enhanced TT1TM Switch Fabric
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PM87 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:PM cores
PM87/70-3C94 制造商:Yageo / Ferroxcube 功能描述:FERRITE CORE PM 3C94 制造商:Yageo / Ferroxcube 功能描述:FERRITE CORE, PM, 3C94, Core Size:PM87, Material Grade:3C94, Effective Magnetic Path Length:146mm, Ae Effective Cross Section Area:910mm2, Inductance Factor Al:15000nH, SVHC:No SVHC (20-Jun-2013), External Depth:70mm, External , RoHS Compliant: Yes
PM871 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
PM872 制造商:ARTESYN 制造商全稱:Artesyn Technologies 功能描述:Single and dual output 10 to 12 Watt Nominal input DC/DC converters
PM87-3C90 制造商:FERROXCUBE 制造商全稱:Ferroxcube International Holding B.V. 功能描述:PM cores