Renesas ISL54100AHDMI-EVALZ User manual

USER’S MANUAL
AN1453
Rev 2.00
Apr 1, 2009
ISL54100AHDMI-EVALZ, ISL54105ACRZ-EVALZ
Operation Manual for Intersil’s 4:1 and 1:1 TMDS (HDMI)
Regenerator Evaluation Kits
AN1453 Rev 2.00 Page 1 of 35
Apr 1, 2009
Thank you for requesting Intersil’s high-performance TMDS
signal multiplexor/regenerator/retimer evaluation kit. This
document contains all information needed to successfully
install software and control the evaluation hardware.
Windows is a registered trademark of Microsoft
Corporation.
HDMI™ is a trademark of HDMI Licensing, LLC
PC Requirements
The software works best with Microsoft Windows 2000 or
XP, and requires a minimum of 6MB free RAM, 5MB free
hard disk space, and a USB (1.1 or higher) port.
Included Files and Hardware
• Evaluation Board (either ISL54100A or ISL54105A)
• Datasheet (PDF format)
• Schematic (PDF format)
• Layout (PDF format)
• “ISL5410xA.exe” software installer (“x” can be “0” or “5”)
• USB type-A to type-B Cable
• Power Supply: AC adapter to 5VDC converter
ISL54100A (41)
ISL54100AHDMI-EVALZ
ISL54105A (11)
ISL54105ACRZ-EVALZ

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ISL54100AHDMI-EVALZ, ISL54105ACRZ-EVALZ
Table of Contents
Definitions ..................................................................................................................................................................................... 3
Evaluation Software Installation .................................................................................................................................................... 3
Connecting the Evaluation Board .................................................................................................................................................. 4
Evaluation Kit Operation ................................................................................................................................................................ 5
Hardware Setup ....................................................................................................................................................................... 5
ISL5410xA Register Defaults ................................................................................................................................................... 5
Hardware Operation ................................................................................................................................................................. 6
ISL54100A ........................................................................................................................................................................... 6
ISL54105A ........................................................................................................................................................................... 7
Software Operation .................................................................................................................................................................. 7
ISL54100A-only Software Features ..................................................................................................................................... 8
ISL54105A-only Software Features ..................................................................................................................................... 8
Display Issues .......................................................................................................................................................................... 8
ISL54101A/ISL54102A ............................................................................................................................................................. 8
HDMI Control Signals (DDC, HPD, and CEC) .............................................................................................................................. 9
Troubleshooting ............................................................................................................................................................................ 9
Software Issues ........................................................................................................................................................................ 9
USB Port .............................................................................................................................................................................. 9
USB Driver Installation ......................................................................................................................................................... 10
Hardware Issues ....................................................................................................................................................................... 10
Notes ........................................................................................................................................................................................10
ISL54100AHDMI-EVALZ Schematics ........................................................................................................................................... 11
ISL54105ACRZ-EVALZ Schematics ............................................................................................................................................. 14
ISL54100HDMI-EVALZ BILL OF MATERIALS ...........................................................................................................................................16
ISL54105ACRZ-EVALZ BILL OF MATERIALS ............................................................................................................................. 19
ISL54100AHDMI-EVALZ Layout ................................................................................................................................................... 21
ISL54105ACRZ-EVALZ Layout ..................................................................................................................................................... 28

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ISL54100AHDMI-EVALZ, ISL54105ACRZ-EVALZ
Definitions
I2C
Inter-Integrated Circuit – A two-wire serial communications bus
designed by Philips Semiconductors. I2C is a multi-master bus,
which means that multiple chips can connect to the same bus
and each one can act as a master by initiating a data transfer.
Many devices use I2C, especially video devices such as
computer monitors, televisions, and VCRs.
DDC
Display Data Channel – A VESA standard for I2C
communication between a monitor and a video adapter. Using
DDC, a monitor (the “sink”) can inform a video card (the
“source”) about its properties, such as maximum resolution
and color depth. The video card can then use this information
to present valid options to the user configuring the display.
TMDS
Transition Minimized Differential Signaling – A high-speed
(Gbit/s) data transmission scheme used by HDMI. At the
electrical level TMDS uses CML1 with two 50terminations to
3.3V. At the data level TMDS has a custom 8b/10b data
encoding scheme to maintain DC-balance.
HDMI
High Definition Multimedia Interface – HDMI is a collection of
physical connector (cable) standards, electrical standards, and
data (protocol) standards. Together, these provide a medium
for securely transmitting digital audiovisual data from a source
(DVD Player) to a sink (HDTV).
GUI
Graphical User Interface – A software interface which is
graphical and presents the user with visual options for program
control; the counter is the command line.
HPD
Hot Plug Detect – Modern display standards make use of an
“HPD” pin that allows two devices to sense an interconnection.
When an HDMI cable is first connected, the sink (display) will
sense 5V power from the source (computer/DVD player), and
the sink will drive its HPD pin high to let the source know it is
ready for video information.
USB
Universal Serial Bus – A serial bus and cabling standard to
interface devices and PCs.
Evaluation Software Installation
Launch the Installation Setup Wizard (the file ending in “.exe”)
included with this evaluation kit and follow the instructions. Upon
completion, a shortcut to the program can then be activated
from the Windows Start Menu under StartAll
ProgramsIntersil. The main program files will be installed in
the C:\Program Files\Intersil\ directory. The USB driver file
windrvr6.sys will be placed into C:\WINDOWS\system32\drivers
and an INF file will be installed under C:\WINDOWS\INF.
The instructions shown in the captions below demonstrate a
typical installation (ISL54105 eval software shown, other
boards’ installations are essentially identical).
1. http://en.wikipedia.org/wiki/Current_mode_logic
FIGURE 1. PRESS "NEXT" TO CONTINUE
FIGURE 2. BY DEFAULT, THE INSTALLER WILL PUT THE
EVAL SOFTWARE UNDER "C:\PROGRAM
FILES\INTERSIL\". PRESS "NEXT" TO
CONTINUE.

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Connecting the Evaluation Board
After installation of the evaluation software, reboot the PC if
requested. Apply power to the evaluation board using the
provided 5V power supply. Connect the USB cable to the
evaluation board. The Microsoft Windows operating system will
see the evaluation board as a new device, and will try to load
an appropriate driver for it.
FIGURE 3. PRESS "NEXT" TO CREATE THE INTERSIL
FOLDER IN THE START MENU
FIGURE 4. PRESS THE "INSTALL" BUTTON TO COPY ALL
THE NECESSARY FILES ONTO THE PC
FIGURE 5. SELECT "YES, NOW AND EVERY TIME..." AND
CLICK "NEXT"
FIGURE 6. ENSURE THE RECOMMENDED OPTION IS
SELECTED AND PRESS "NEXT"
FIGURE 7. THE HARDWARE WIZARD WILL LOCATE AND
INSTALL THE ISL5410xA DRIVERS

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ISL54100AHDMI-EVALZ, ISL54105ACRZ-EVALZ
Evaluation Kit Operation
Hardware Setup
Please follow the steps below in order to make use of our
evaluation board.
Plug the power supply into the wall, and connect the 5V
connector to the board’s power jack. Connect a DVI/HDMI
video sink (monitor, HDTV, etc) to the output connector.
Connect a DVI/HDMI video source (PC, DVD player, etc) to the
input connector.
ISL5410xA Register Defaults
The ISL54100A and ISL54105A datasheets mention
“recommended default” values. Intersil has programmed the
evaluation board’s microcontroller to overwrite two of the
silicon default values: the PLL bandwidth bits (register 0x10
bits [1:0]) and clock hysteresis bits (register 0x03 bits [6:5])
When the PLL bandwidth is set lower, the ISL5410xA will reject
more high-band jitter. High-band jitter present on TMDS lines
can make it difficult for HDTVs/monitors to track the input
signal, and this effect is most noticeable for high-datarate
signals over long cables.
The ISL5410xA detects activity in one of two ways: common
mode detection or hysteresis detection. Common mode activity
detection is less robust, since it only looks at the DC voltage
level on the clock pin. Hysteresis detection mode looks for
movement on the clock pin.
Write “0x10” to Channel Selection register 0x02 to reset our
TMDS regenerator to its silicon-default values.
FIGURE 8. DONE! CLICK "FINISH" TO CLOSE THE WIZARD
FIGURE 9. ON XP SYSTEMS, A POP-UP MESSAGE MAY
DISPLAY THE CONNECTION STATUS OF THE
ISL5410xA HARDWARE
FIGURE 10. ISL54100AHDMI-EVALZ BOARD WITH PORT
LABEL

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ISL54100AHDMI-EVALZ, ISL54105ACRZ-EVALZ
Hardware Operation
The ISL54100A board and ISL54105A board have different
hardware controls as shown in Figure 12.
ISL54100A
Figure 12 shows four switches which can put the ISL54100A
into a variety of states (detailed in Tables 1 and 2). The Addr
pins can be used to change the ISL54100A’s I2C device
address. Designs which have multiple ISL54100As connected
to the same I2C bus need to give each device a different I2C
address.
Note that a hardware channel selection (Sel 0 and Sel 1) can
be overridden by an I2C software channel select command.
The evaluation boards are designed to indicate the
ISL5410xA’s state of operation. In the event of hardware
issues, these LEDs may help the user locate any problems.
FIGURE 11. ISL54105ACRZ-EVALZ BOARD WITH PORT
LABELS
FIGURE 12. ISL54100A DIP SWITCHES IN THE
"AUTO-SELECT" POSITION
TABLE 1. POWER DOWN AND AUTO SEL EN DESCRIPTION
SWITCH LABEL "ON" STATE "OFF" STATE
Power Down Minimal power consumption
mode; TMDS lines are
open-circuited
Normal operation
Auto Sel En Ignore Sel 1 and Sel 0.
Select first port with active
clock (try A, B, C, D)
Select port
according to state
of Sel 0 and Sel 1
TABLE 2. SEL 0 AND SEL 1 SWITCH DESCRIPTION
SWITCH STATE SELECTED
PORTSEL 1 SEL 0
Off Off Port A
Off On Port B
On Off Port C
On On Port D
TABLE 3. ISL54100A BOARD LED DESCRIPTION
LED DESIGNATOR "ON" STATE DESCRIPTION
D1 3.3V rail is low
D2 Flashes during µC reset
D3 Sink (output) device connected
D6 3.3V rail detected
D10 Active clock on Port A
D11 Active clock on Port B
D16 Active clock on Port C
D17 Active clock on Port D
D18 CH_SEL_1 high
D20 CH_SEL_0 low
TABLE 4. RELATIONSHIP BETWEEN ROTARY SWITCH POSITION AND REGISTER SETTING
SWITCH
POSITION
“0” “1” “2” “3” “4” “5” “6” “7” “8” “9” “A” “B” “C” “D” “E” “F”
REGISTER
BITS
0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111

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Figure 13 shows the Equalization switch and Preemphasis
switch which adjust the input and output gains of the
ISL54100A. The equalization bits (register 0x08 bits [3:0])
control the gain applied to the incoming signal. The
preemphasis bits (register 0x06 bits [7:4]) increase the
high-frequency content of the output signal2. For both
switches, “F” represents the maximum and “0” the minimum.
Note that if the rotary switches are turned, the other nibble of
that register is reset to 0x0, and will need to be reprogrammed
as required using the input boxes on the GUI.
Software Operation
The user can launch the software from either the Start Menu, or
from the user-specified installation path on the hard drive. Once
launched, the user will see one of the following screens:
Note that the grayed-out registers are read-only (0x00, 0x01,
0x0A, 0x0B, and 0x0C).
Click on the “Read All Registers” button and the ISL5410xA
register values should populate across every field (Figure 17).
The “Re-Calibrate Termination” button forces the ISL5410xA to
manually recalibrate the TMDS termination impedances (see
register 0x03 bit 7).
If the register values come back as all “0” (Figure 16), verify
that the I2C address is set to match the board. The I2C address
is set through the “SerAddr” box in the ISL54100A GUI or “I2C
Addr” field in the ISL54105A GUI.
If the I2C address is correct for the board and the software is
still not able to read the registers, please proceed to
“Troubleshooting” on page 9 of this document.
2. Preemphasis (high frequency boost) is used to partially offset the
high frequency attenuation of long cables.
TABLE 5. ISL54105A BOARD LED DESCRIPTION
LED DESIGNATOR "ON" STATE DESCRIPTION
D1 3.3V rail detected
D2 Active clock on input
D4 Flashes during µC reset
FIGURE 13. ISL54105A ROTARY SWITCHES AND RESET
BUTTON
FIGURE 14. ISL54100A SOFTWARE GUI
FIGURE 15. ISL54105A SOFTWARE GUI
FIGURE 16. RESULT OF A REGISTER READ WHEN DEVICE
I2C ADDRESS IS SET INCORRECTLY

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To change a register value, simply select one or both nibbles3
of the desired register and type the new number.
Should the user desire to change both upper/lower nibbles in a
register, it is important to type both digits in under a second.
The software is written to automatically read back any
changes, so a slow typist may only get one value in before that
register is automatically read back, causing unintended values
to be written.
Some shortcuts for changing the selected register’s value are:
• Up Arrow – Increment by 1
• Down Arrow – Decrement by 1
• Page Up – Increment by 16 (increment high nibble by 1)
• Page Down – Decrement by 16 (decrement high nibble by 1)
The user can find a complete listing of register bits in the
datasheet, or in the “register definitions” drop-down menu as
shown in Figure 18.
ISL54100A-ONLY SOFTWARE FEATURES
The ISL54100A board has multiple input HDMI ports, so the
“Channel Select” box in the lower left region of the GUI will
modify the IC’s channel select setting (register 0x02 bits [1:0]).
Remember that software-control overrides the state of the
hardware channel select pins.
The software contains the option to force the output HPD pin
high (“Force Output HPdetect”). This pin is normally driven by
the device connected to the board’s output port (the sink).
Manual control of the HPD pin may be useful for
experimentation and debugging purposes.
ISL54105A-ONLY SOFTWARE FEATURES
The ISL54105A software has a box labeled “Scan I2C”. When
clicked, the ISL54105A software will try every I2C address from
0x00 to 0x7F (0 to 127) and stop when a response is found for
a particular address. This allows users to connect the
evaluation board’s I2C lines (SDA, SCL, GND) to a different
board’s I2C lines and quickly find the new board’s ISL54105A’s
I2C address.
Display Issues
In the event that a display or monitor does not show any
image, please verify the board’s settings and proceed to
“Troubleshooting” on page 9 of this document.
ISL54101A/ISL54102A
The fundamental pinout is the same across all regenerators
using the QFP128 package.
Since the ISL54102A is a 2:1 regenerator, it has input/status
pins for ports A and B only. The 1:1 regenerator ISL54101A
has input/status pins for port A only.
HDMI Control Signals (DDC, HPD, and CEC)
The ISL54105A and ISL54100A boards handle the DDC, HPD,
and CEC control signals differently. The ISL54105A board’s
3. A nibble is four bits, or half of one byte. 0xF2 has two nibbles, 0xF
= 0b1111 and 0x2 = 0b0010.
FIGURE 17. REGISTERS HAVE BEEN READ; NOW
CHANGING THE UPPER NIBBLE OF REGISTER
0x03
FIGURE 18. "REGISTER DEFINITIONS" DROP-DOWN MENU

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control signals are wired directly from the input to the output
since it is a 1:1 design. The ISL54100A design has to multiplex
these control signals as well as the TMDS signals as shown in
Figure 20.
The logic for HPD/DDC multiplexing is shown in Figure 19.
The CEC signal is a serial communications bus for all
connected devices, and all CEC signals are shorted together.
See the HDMI spec for more information.
Troubleshooting
Software Issues
USB PORT
The software should be able to communicate with the
evaluation board as soon as it is launched. If there is a
communication problem, the following dialog box should be
displayed:
If this dialog is present, open the Windows Control Panel.
Double-click on the “System” icon and select the “Hardware”
tab, then click on Device Manager. The screen shown in Figure
22 should now be present.
System
power
on
uC sets all source
HPD pins low
Sink HPD or
port selection
change?
uC sets all source
HPD pins low
Sink HPD
high?
Set selected port’s
source HPD high
No
No
Yes
Yes
FIGURE 19. LOGIC FLOW CHART FOR MUXING HDMI
CONTROL SIGNALS
Input port A
control pins
Input port B
control pins
Input port C
control pins
Input port D
control pins
DDC Switch
Microcontroller
2
Output port
control pins
User Input
2
Chan Sel
2
2
2
Source Side
Sink Side
2
FIGURE 20. INTERCONNECTIONS BETWEEN DDC (BLUE),
HPD (RED), DDC SWITCH, AND A µC
FIGURE 21. ERROR DETECTING USB CONNECTION TO
EVALUATION BOARD
FIGURE 22. WINDOWS DEVICE MANAGER SHOWING
EVALUATION BOARD USB DRIVERS

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There should be a “Jungo” entry, with an item for Intersil’s
evaluation board. This indicates the driver is properly installed
and is communicating with the evaluation board. If this is not
visible, or there are any error messages, take the following
actions:
• Verify that the evaluation board has power and the USB
cable connects between the evaluation board and the PC
• Disconnect the USB cable and then reconnect the USB
cable between the evaluation board and PC
• Close all instances of the ISL5410xA application and restart
the software
If none of this works, try rebooting, and then try installing the
software on a different PC to verify correct operation of the
evaluation board and software.
USB DRIVER INSTALLATION
After rebooting the PC, please verify that the following files are
in the following locations for the ISL54105A board:
• windrvr6.sys in C:\WINDOWS\system32\Drivers
• ISL54105ACQZ-EVALZ.inf in C:\WINDOWS\INF
• ISL54105A_HDMI.exe in C:\Program Files\ISL54105A
...or for the ISL54100A board:
• windrvr6.sys in C:\WINDOWS\system32\Driver
• ISL54100AHDMI-EVALZ.inf in C:\WINDOWS\INF
• ISL54100A_HDMI.exe in C:\Program Files\ISL54100A
Hardware Issues
If the USB connection is functioning, but the DVI/HDMI monitor
does not display an image, take the following steps:
• Hook the source directly to the sink, bypassing the
ISL5410xA. If no image is displayed, resolve that problem
before reinserting the ISL5410xA.
• Try changing the video resolution on the source to 480p or
800x600 pixels. Some HDTVs can not accept resolutions
common to PCs (1600x1200), and some monitors can not
accept resolutions common to DVD players (1080p).
• Ensure the correct ISL54100A input is selected.
• Ensure the correct monitor/HDTV input is selected.
• Check to see if input and output connections are reversed
• Close the software and reset the µC with the push-button
switch.
• Use a voltmeter to verify the board is receiving a logic-high
HPD signal from the video sink.
• Check to see the “3.3V present” LEDs are lit (see Tables 3
and 5) and check the 3.3V rail with a voltmeter.
If the power cord is plugged into the board and connected to
the wall, and the “power good” LEDs are not lit, check to see if
the ISL54100A’s fuse has blown (see F4 – next to the input
power connector).
If the fuse is blown or the board is otherwise not functioning as
expected, please contact your distributor or local Intersil Sales
Office for further assistance.
Notes
1. Using the PRE-EMPH rotary switch to modify the
pre-emphasis will clear the contents of the "Transmit
Current" (register 0x06[4:0]) nibble. Since the default
transmit current is the standard 10mA, this is rarely a
problem. If a transmit current higher than 10mA is desired,
it must be programmed via the I2C/USB interface.
2. The hardware RESET button resets both the USB
microcontroller and the ISL54105A. Resetting the
microcontroller will disrupt the USB connection to the PC.
Fortunately a hardware reset is never needed in normal
operation - both the ISL54105A and the microcontroller
should power on working correctly and stay in that state
until power is removed. However, if the RESET button is
pressed and communication is lost, simply closing and
restarting the evaluation software should restore
communication.