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January 18, 2011

CPS-10Q

CPS-10Q Datasheet

2010 Integrated Device Technology, Inc. All rights reserved.

80KSW0005 Quad Type and Configuration

Speed Select (SPD[1:0])

There are 2 port speed select pins. These pins are used to chose the initial speed on sRIO ports. The selection table is given below:

At power-up the CPS-10Q is configured as a 16-port device. 8 ports are configured as x4 ports and 8 ports are configured as x1 ports with each link

running at 1.25, 2.5, or 3.125 Gbps (depending on the SPD[1:0] pins) on each link.

An end-point connected to the CPS-10Q can then reprogram all the ports to the desired configuration. All ports are configured as long run at start up

because it will allow the port to communicate to either a short run or long run port on the CPU.

Initialization of sRIO Switching

At the initialization all values in the route table are programmed as default route. But the CPS-10Q accepts maintenance packets. These maintenance

packets may be used to configure the device.

Lane#

Quad#

Quad

Type

Default

on

Reset

1x-Ports Only

Port

Numbering

4x-Ports Only

Port Numbering

3 - 0

0

Standard

Standard

0

0

7 - 4

1

Standard

Standard

1

1

11 - 8

2

Standard

Standard

2

2

15 - 12

3

Standard

Standard

3

3

16

4

Enhanced

Enhanced

4

4

17

5

18

6

19

7

23 - 20

5

Standard

Standard

8

5

27 - 24

6

Standard

Standard

9

6

31 - 28

7

Standard

Standard

10

7

35 - 32

8

Standard

Standard

11

8

36

9

Enhanced

Enhanced

12

9

37

13

38

14

39

15

Table 37 Reset Port Configuration

Value on the Pins

(SPD1, SPD0)

Ports Rate

00

1.25Gbps

01

2.5Gbps

10

3.125Gbps

11

Reserved

Table 38 Port Speed Selection Pin Values