mt89l86apr1 Zarlink Semiconductor, mt89l86apr1 Datasheet - Page 16

• Manufacturer Part Number: mt89l86apr1
• Description: 512 X 256 Channels 3.3 V Multiple Rate Digital Switch Mrdx With Constant Delay Mode
• Manufacturer: Zarlink Semiconductor

* - for Data Memory Read operations A0 is not required since two nibbles are provided per read access.
Note:In rate conversion applications, Data Memory subsections have different sizes than Connection Memory subsections. This implies that
different address inputs are used to select individual positions within the subsections for each type of memory.
2 Mb/s to 4
2 Mb/s to 8
4 Mb/s to 2
8 Mb/s to 2
Nibble Switch
Different
Mb/s
Mb/s
Mb/s
Mb/s
Identical
Rate
(2 Mb/s)
I/O
2 Mb/s
2 Mb/s
2 Mb/s
4 Mb/s
4 Mb/s
8 Mb/s
Rate
I/O
Streams
Input x
Output
Config.
8x4
8x2
4x8
2x8
# of Input x
Streams
Output
16x8
Table 7 - Use of STA Bits for Different I/O Data Rate Operation
8x8
4x4
4x4
8x4
2x2
8x4
Table 6 - Use of STA Bits for Identical I/O Data Rate Operation
STA2, STA1,
STA0
STA2, STA1,
STA0
STA1, STA0
STA0
STA bits used to
subsections
Memory
select
Data
STA2, STA1, STA0
STA1, STA0
STA3, STA2, STA1,
STA0
STA1, STA0
STA2, STA1, STA0
STA0
STA2, STA1, STA0
select subsections of
STA bits used to
the Data
Memory
STA1, STA0
STA0
STA2, STA1,
STA0
STA2, STA1,
STA0
STA bits used to
Connection
subsections
Zarlink Semiconductor Inc.
Memory
select
MT89L86
16
STA2, STA1, STA0
STA1, STA0
STA2, STA1, STA0
STA1, STA0
STA1, STA0
STA0
STA1, STA0
select subsections of
A4, A3, A2, A1, A0
A4, A3, A2, A1, A0
A6, A4, A3, A2, A1, A0
A7, A6, A4, A3, A2, A1, A0 A4, A3, A2, A1, A0
Input Address pins used to
STA bits used to
the Connection
access individual Data
positions within the
selected subsection
Memory
Memory
A4, A3, A2, A1, A0
A7, A6, A4, A3, A2, A1, A0
A4, A3, A2, A1, A0
A4, A3, A2, A1, A0
A6, A4, A3, A2, A1, A0
A6, A4, A3, A2, A1, A0
A6, A4, A3, A2, A1, A0 *
within the selected subsection
select individual Connection
and Data Memory positions
Input Address pins used to
A6, A4, A3, A2, A1, A0
A7, A6, A4, A3, A2, A1, A0
Input Address pins used to
A4, A3, A2, A1, A0
Connection Memory
positions within the
selected subsection
access individual
Data Sheet