MT90840AP Zarlink, MT90840AP Datasheet - Page 41

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MT90840AP

Manufacturer Part Number
MT90840AP
Description
Switch Fabric 512 x 2430/512 x 512/2.373K x 2.373K 5V 84-Pin PLCC Tube
Manufacturer
Zarlink
Datasheet

Specifications of MT90840AP

Package
84PLCC
Number Of Ports
16
Fabric Size
512 x 2430|512 x 512|2.373K x 2.373K
Switch Core
Non-Blocking
Port Speed
8.192|4.096|2.048 Mbps
Operating Supply Voltage
5 V

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MT90840AP
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ZARLINK
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Transmit Path Connection Memory Low (TPCM Low) - This is an 8-bit x 2430-position memory.
AB7-0
SERIAL STREAM and CHANNEL ALLOCATION
2 Mbps
4 Mbps
8 Mbps
SOURCE CHANNEL ADDRESSING IN TM4
6.48 Mbyte/s
16.384 Mbyte/s
19.44 Mbyte/s
USE OF THE TPCM HIGH AND LOW ADDRESS BITS WHEN SELECTING SOURCE SERIAL-PORT CHANNELS (TM1, TM2 and TM3)
up to 512 serial source channels from the serial port side to be connected to any 512 (out of 2430) output channels available on
the parallel port side. See table for details.
from the parallel port input to be connected to any of the 2430 channels available on the parallel port output side.
the corresponding channels at the PDo0-7 lines until the mode is changed by the CPU.
Source Channel Address Bits. In Timing Modes 1, 2, and 3, these 8 bits are used along with bit AB8 in the TPCM High to select
In Timing Mode 4, these 8 bits are used along with bits AB8-11 in the TPCM High memory to select up to 2430 source channels
If message mode is selected at TPCM High bits, the contents of the AB0-7 bits in the TPCM Low locations are transmitted to
AB7
7
16 i/o (512 channels)
8i x 8o (512 channels)
4i x 4o (512 channels)
AB6
6
AB5
5
AB0-AB9 (one of 810 input channels)
AB0 - AB10 (one of 2048 input channels)
AB0 - AB11 (one of 2430 input channels)
AB4
4
SOURCE STREAM ADDRESSING
AB5,AB6,AB7,AB8 (up to 16 streams)
AB6, AB7, AB8 used to select up to 8 streams
AB7, AB8 used to select up to 4 streams
Zarlink Semiconductor Inc.
AB3
3
MT90840
41
AB2
2
AB1
1
AB0
0
SOURCE CHANNEL ADDRESSING
AB0 to AB4 used to select up to 32 channels per
stream
AB0 to AB5 used to select up to 64 channels per
stream
AB0 to AB6 used to select up to 128
channels per stream
(TX Path CM Low)
Data Sheet

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