參數(shù)資料
型號(hào): MT90500
廠商: Mitel Networks Corporation
英文描述: Multi-Channel ATM AAL1 SAR(多通道 ATM AAL1分段及重組設(shè)備(基于通訊總線的系統(tǒng)與ATM網(wǎng)絡(luò)的接口))
中文描述: 多通道自動(dòng)柜員機(jī)AAL1特區(qū)(多通道自動(dòng)柜員機(jī)AAL1分段及重組設(shè)備(基于通訊總線的系統(tǒng)與空中交通管理網(wǎng)絡(luò)的接口))
文件頁(yè)數(shù): 138/159頁(yè)
文件大?。?/td> 514K
代理商: MT90500
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MT90500
138
The MT90500 will work with a variety of standard Synchronous SRAM parts. The burst feature of the
Synchronous SRAM is not used by the MT90500, and since the SSRAM is not connected to a cache controller,
some of the control pins of most SSRAMS are not used by the MT90500. The common control pin names for
the SSRAM, and their connections when used with the MT90500, are listed in Table 98, and Table 99.
The Secondary UTOPIA bus of the MT90500, and the Transmit UTOPIA multiplexer, allow application flexibility
in working with a variety of off-the-shelf data SARs. This feature also allows two MT90500s to be combined for
a full 2048 full-duplex TDM channel application (allowing full connection to a 4096 channel backplane). Note
that each MT90500 carries 1024 channels in each direction, not 2048 transmitted by one MT90500, and 2048
received by the other MT90500. The capabilities of the TX SAR and RX SAR internal blocks are balanced at
1024 channels.
Table 98 - MT90500 Connections to 18-bit Synchronous SRAM
Pin Function
SSRAM
MT90500
Notes
Address
A0-A14
MEM_ADD[14:0]
Data
DQ[0:7, 9:16]
MEM_DAT[15:0], or
MEM_DAT[31:16]
MEM_DAT[31:16] used for second SSRAM chip.
Underrun Flag
DQ[8, 17]
MEM_PAR[1:0], or
MEM_PAR[3:2]
MEM_PAR[3:2] used for second SSRAM chip.
Lower Byte Write Enable
LW*
MEM_WR[0], or MEM_WR[2]
MEM_WR[2] used for second SSRAM chip.
Upper Byte Write Enable
UW*
MEM_WR[1], or MEM_WR[3]
MEM_WR[3] used for second SSRAM chip.
Memory Clock
K
MEMCLK
Chip Enable
E*
MEM_CS0L, or MEM_CS0H, or
MEM_CS1L, or MEM_CS1H
MEM_CS0H used for second SSRAM chip.
MEM_CS1x used for second bank of SSRAM chips.
Output Enable
G*
MEM_OE
Burst Address Advance
ADV*
-
Never enabled - pull to VDD to disable
Processor Address Status
ADSP*
-
Never enabled - pull to VDD to disable
Controller Address Status
ADSC*
-
Always enabled - tie to GND to enable
Note:
The pin names in this table correspond to those for the Motorola 32K x 18-bit BurstRAM Synchronous Fast Static RAM
(MCM67H518).
Table 99 - MT90500 Connections to 32/36-bit Synchronous SRAM
Pin Function
MCM69F536A
CY7C1329
MT90500
Notes
Address
SA
A
MEM_ADD
Data
DQ
DQ[31:0]
MEM_DAT[31:0]
Underrun Flag
DQ8[d:a]
(pull-up)
MEM_PAR[3:0]
If TDM Underrun Error indication not used, pull-
up MEM_PAR[3:0] to V
DD3
.
Byte Write
SB*[d:a]
BW*[3:0]
MEM_WR[3:0]
Global Write
SGW*
GW*
-
Tie high (disable global writes)
Byte Write Enable
SW*
BWE*
-
Tie low (enable byte-writes)
Clock
K
CLK
MEMCLK
Chip Enable 1
SE1*
CE1*
-
Tie low (enable)
Chip Enable 2
SE2
CE2
-
Tie high (enable)
Chip Enable 3
SE3*
CE3*
MEM_CS0L
MEM_CS1L used for second bank/ chip.
Output Enable
G*
OE*
MEM_OE
Burst Address Advance
ADV*
ADV*
-
Tie high (disable)
Processor Address
Status
ADSP*
ADSP*
-
Tie high (disable)
Controller Address
Status
ADSC*
ADSC*
-
Tie low (enable)
Sleep
-
ZZ
-
Tie low
Burst Mode
LBO*
MODE
-
Tie low or tie high
no connect
-
-
MEM_CSxH
MEM_CSxH not used with 32/36 bit memory
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT90500AL 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Multi-Channel ATM AAL1 SAR
MT90500AL-ENG1 制造商:Mitel Networks Corporation 功能描述:
MT90502 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Multi-Channel AAL2 SAR
MT90502_06 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Multi-Channel AAL2 SAR
MT90502AG 制造商:Rochester Electronics LLC 功能描述: 制造商:Zarlink Semiconductor Inc 功能描述: