參數(shù)資料
型號(hào)： MT90221
廠商： Mitel Networks Corporation
英文描述： Quad IMA/UNI PHY Device(四端口 IMA/UNI 物理層設(shè)備（四端口ATM IMA和UNI處理器）)
中文描述： 四IMA的/單向物理層設(shè)備（IMA的四端口/單向物理層設(shè)備（四端口自動(dòng)柜員機(jī)IMA的和單向處理器））
文件頁數(shù)： 13/116頁
文件大?。?/td> 309K
代理商： MT90221
MT90221
5
162, 163,
164, 165,
166, 169,
170, 171,
172, 175,
176, 177,
178, 179,
182, 183,
184, 185,
186
sr_a
[18:0]
O
Static Memory Address Bus
. The signal is used to select an entry in the external
static memory.
187
sr_we
O
Static Memory Read/Not Write
. If low, data is written from the MT90221 to the
memory. If high, data is read from the memory to the MT90221.
198, 199
sr_cs_1, 0
O
Static Memory Chip Control Signal
.
Processor Interface Signals (see Note 2)
44, 45, 46,
47, 48, 49,
50, 51
up_d
[7:0]
I/O
Processor Data Bus
. Data Bus to exchange data between the MT90221 and a
local processor.
55, 56, 57,
58, 59, 60,
61, 62, 63,
64, 65
up_a
[10:0]
I
Processor Address Bus
. They are used to select the internal registers and
memory positions of the MT90221.
41
up_r/w
or
up_wr
I
Processor Read/Not Write. Motorola Mode.
This is an input signal. If low, data is
written from the processor to the MT90221. If high, data is read from the MT90221
to the processor.
Processor Not Write (Intel Mode).
This is an input signal. If low, data is written
from the processor to the MT90221. De-asserting this signal to high will terminate a
write cycle.
40
up_oe
or
up_rd
I
Output enable Motorola Mode.
This is an input signal. This signal should be tied
to GND for Motorola timing mode.
Processor Not Read (Intel Mode).
This is an input signal. If low, data is read from
the MT90221.
39
up_cs
I
Processor Chip Select
. This is an active low input signal. If this signal is high, the
MT90221 ignores all other signals on its processor bus. If this signal is low, the
MT90221 accepts the signals on its processor bus. De-asserting this signal to high
will terminate an access cycle.
67
up_irq
O
Processor Interrupt Request
. If this signal is low, the MT90221 signals to the
processor that an interrupt condition is pending inside the MT90221. Otherwise no
interrupt is pending inside the MT90221. Open drain signal.
PCM Interface Signals
99,107,
109,116
DSTo
[3:0]
O
Serial PCM Data Output 3-0
. A 1.544 Mbit/s or 2.048 Mbps serial stream which
contain 24 (T1) or 32 (E1) PCM or data channels received on T1 or E1 line. The
output is set to high impedance for unused channels and if the link is not used.
136, 143,
145, 151
DSTi
[3:0]
I
Serial PCM Data Input 3-0
. A 1.544 Mbit/s or 2.048 Mbps serial stream which
contains the 24 (T1) or 32 (E1) PCM or data channels on T1 or E1 line.
Pin Description (continued)
Pin #
Name
I/O
Description
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT90221AL 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Quad IMA/UNI PHY Device
MT90222 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:4/8/16 Port IMA/TC PHY Device
MT90222AG 制造商:Microsemi Corporation 功能描述:ATM IMA 40MBPS 2.5V 384BGA - Trays
MT90222AG2 制造商:Microsemi Corporation 功能描述:ATM IMA 40MBPS 2.5V 384BGA /BAKE/DRYPACK - Trays
MT90223AG 制造商:Microsemi Corporation 功能描述:ATM IMA 80MBPS 2.5V 384BGA - Trays
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