Mindspeed Technologies M21115, M21125 User Manual
M21125/M21115 Evaluation Module
User Guide
21125-EVMD-001-B
July 2013
Revision History
Revision Date Description
B July 2013 Updated High Speed output settings, Tab le 2- 3
A February 2009 Initial release
Added Software Operation, Chapter 3
21125-EVMD-001-B Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
2
Contents
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.0 Quick Start Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.0 Software Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Software Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.2 Software Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.2.1 Connection Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.2.2 Resetting the Device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3.2.3 Direct/Indirect Write Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3.2.4 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3.2.5 Direct Register Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.2.6 Saving/Loading State and Macro Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
21125-EVMD-001-B Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
3
1.0 Introduction
This user guide describes how to use the M21125/M21115 evaluation module (EVM). The M21125 is a 40 input by
40 output crosspoint switch and the M21115 is a 20 input by 20 output crosspoint switch rated to operate up to 3.8
Gbps. The EVM is a demonstration and test platform that enables system developers and product designers to
quickly evaluate the functionality and performance of the M21125 and M21115.
The EVM is a single PC board that provides access to 16 lanes of the crosspoint switch (XPTS). One group of four
lanes is accessed via HDMI connectors, another group of four lanes is accessed via DVI connectors, and the
remaining two groups of four lanes are accessed via SMA connectors. The HDMI and DVI connectors are DCcoupled to allow for direct connection to cables interfaced to TMDS sources and sinks. The SMA connectors are
AC-coupled to enable connections to laboratory test equipment such as generators and analyzers. The EVM is
powered utilizing the supplied AC adapter, and controlled with on-board DIP switches. Note that when the EVM is
populated with a M21115 component, the HDMI connectors cannot be used.
21125-EVMD-001-B Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
4
2.0 Quick Start Guide
The EVM is ready to use out of the box. Please refer to Figure 2-1 for the location of the various connectors.
Figure 2-1. M21125/M21115 Evaluation Module
21125-EVMD-001-B Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
5
1. Connect the supplied AC adapter to connector J85 (+5.0 VDC).
2. For HDMI evaluations, attach an HDMI cable from the source to the connector labeled HDMI IN (J86) and an
HDMI cable from the sink to the connector labeled HDMI OUT (J87). Note that when the EVM is populated with
a M21115 component, the HDMI connectors cannot be used.
3. For DVI evaluations, attach a DVI cable from the source to the connector labeled DVI IN (J17) and a DVI cable
from the sink to the connector labeled DVI OUT (J18).
4. In addition, the SMA connectors can be used for an AC-coupled interface to test equipment. Signal generators
should be connected to the EVM by securing 50 cables to the SMA connectors labeled IN[7:0], and signal
analyzers should be connected to the EVM by securing 50 cables to the SMA connectors labeled OUT[7:0].
Note that the EVM is pre-configured for pass-through mode, routing GRP0 IN0 to GRP0 OUT0, GRP0 IN1 to
GRP0 OUT1, … , GRP1 IN7 to GRP1 OUT7.
5. The crosspoint switch state can be altered utilizing DIP switches XPS CONFIG[1:0] located at SW3, as shown
in Ta bl e 2 -1. The EVM has been pre-configured for the group switch mode, where groups of four lanes are
switched at a time. Group 0 consists of inputs/outputs [3:0] and group 1 consists of inputs/outputs [7:4]. See
Ta bl e 2 -2 for the input/output mapping for two of the switch states. After the DIP switches have been
reconfigured it is necessary to push the button labeled uC RESET located at S3; see Figure 2-2.
Table 2-1. Crosspoint Switch State Configuration
XPS CONFIG[1:0] Input Output
LL GRP0 GRP0
GRP1 GRP1
HDMI HDMI
DVI DVI
LH GRP0 GRP1
GRP1 GRP0
HDMI DVI
DVI HDMI
HL GRP0 HDMI
GRP1 DVI
HDMI GRP0
DVI GRP1
HH GRP0 DVI
GRP1 HDMI
HDMI GRP1
DVI GRP0
21125-EVMD-001-B Mindspeed Technologies
®
Mindspeed Proprietary and Confidential
6
Loading...