28500-DSH-002-C Datasheet, PDF (19/224 Pages) M/A-COM Technology Solutions, Inc. – Multichannel Synchronous Communications Controller

Introduction
Table 1-3. Data Path Combinations
Path
Combinations
2 Mbps
(2.048)
Low Speed
4 Mbps 8 Mbps 10 Mbps
(4.096) (8.192) (10.240)
13 Mbps
(12.960)
34.4 Mbps⁽¹⁾
(E3-34.368)
High Speed
44.7 Mbps⁽¹⁾
(T3-44.736)
51.8 Mbps⁽¹⁾
(HSSI-51.840)
Aggregate
Port Speed
Allowed
—
17
—
—
—
—
—
6
380.7 Mbps
Number of
Ports
—
26
—
—
—
6
—
—
312.7 Mbps
—
—
14
—
—
—
6
—
383.1 Mbps
—
—
22
—
—
6
—
—
386.4 Mbps
—
—
9
—
—
—
—
6
384.8 Mbps
—
—
—
11
—
—
6
–
381.1 Mbps
—
—
—
7
—
—
—
6
382.7 Mbps
—
—
—
17
—
6
–
—
380.3 Mbps
—
—
—
—
9
—
6
—
385.1 Mbps
—
—
—
—
6
—
—
6
388.8 Mbps
—
—
—
—
14
6
—
—
387.6 Mbps
26
—
—
—
—
—
6
—
321.7 Mbps
26
—
—
—
—
—
—
6
364.3 Mbps
26
—
—
—
—
6
—
—
259.5 Mbps
GENERAL NOTE:
1. These data path combinations are meant to illustrate the flexibility in data path configuration, and are not suggesting that these are the
only supported configurations. Again, they are here for illustration purposes only. Other data rates and path combinations are achievable,
as long as device-aggregate bandwidth restrictions and per-port bandwidth restrictions are met.
FOOTNOTE:
(1) _{A high speed port can be E3 (34.4 Mbps), T3 (44.7 Mbps), or HSSI (52 Mbps) without exceeding the maximum of six serial ports.}
CX28500’s configuration options are extremely flexible. Each logical channel can be assigned to a physical stream
ranging from 8 Kbps (sub-channeling mode) to 52 Mbps.
CX28500’s serial ports can interface to a standard PCM highway or TSBUS bus, which can be configured to
operate at any of the serial port rates given in Tables 1-4 and 1-5.
Table 1-4. Examples of Serial Port Configurations With 33 MHz PCI Clock
Configuration
Total Bandwidth
32 x T1
32 x E1
2 x 52 + 30 x E1
32 x 2E1
Maximum
49.408 Mbps
65.536 Mbps
165.44 Mbps
131.072 Mbps
250 Mbps
PCI Clock
33 MHz
33 MHz
33 MHz
33 MHz
33 MHz
28500-DSH-002-C
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