Cypress CY30701 Peppermint board Datasheet

CY30701
Peppermint Board
(CY22393 Candy Board)
Features
Benefits
Demonstrate CY22393 capabilities
See actual waveforms from a JEDEC file you just created
CyClocksRT support
Easy-to-use software configuration support, program on-the-fly in seconds
USB interface
Simple plug-and-play interface
Built-in crystal
No external reference required for use
Built-in test points
Easily accessible probe points
Compact design
Easily portable like a piece of candy
Logic Block Diagram
Board Layout
10 MHz XTAL
CLKC
Touch Pad
External
GND
Status LED
GND
D+
D5V
USB
CY7C63231A
USB Connection
CY22393
XBUF
CLKA
CLKB
CLKC
CLKD
CLKE
XBUF
CLKA
CLKD
CLKB
CLKE
GND
External
5V
SDAT
VDD
AVDD
SCLK
OE
Touch Pad
(back side)
External
GND
5V to 3.3V
Regulator
External
VCC – 5V
Cypress Semiconductor Corporation
Document #38-07128 Rev. **
•
3901 North First Street
•
San Jose
•
CA 95134 • 408-943-2600
Revised January 9, 2002
CY30701
CY30701 Peppermint Board
Touch Pad
The CY30701 Peppermint board is a demo board that features
our CY22393 serial programmable clock chip. The boards are
USB-compatible and can run in stand-alone mode or with our
Cypress’s CyClocksRT software.
Each Peppermint board has a special touch pad built onto it
that functions as a S2/suspend button. Just squeeze the “C”
in the name “Cypress” (the touchpad is on the back side right
under the “C”) and the LED should blink, indicating that it has
received the command. Each squeeze will toggle the
S2/suspend pin from 0 to ,1or 1 to 0.
The Peppermint board can be used to serially program a
CY22393 and measure the actual performance of your configuration. The datasheet has a broad jitter specification of
maximum 400 ps, but there are millions of possible PLL and
output frequency combinations that may yield much higher
performance. The Peppermint board allows both a prospective
user to see real performance or a systems engineer to see
output phase relationships, and get a better feel for what the
CY22393 is capable of doing. All the user needs is a computer
running CyClocksRT with a USB connection and an oscilloscope to look at waveforms, or just an oscilloscope and 5V
power supply to look at the preprogrammed configurations in
the CY22393.
How to Use the Boards
In order to use the Candy boards, users must have Windows
98 Second Edition (SE) Operating System or a later version
installed on their computer. The user will just need to plug in
the device and Windows should be able to detect it and install
the appropriate drivers. If you are using Windows 98 SE you
will need the Windows installation disk to install appropriate
drivers.
Each Peppermint board features a preprogrammed CY22393
embedded onto the board. Once powered, the outputs should
exhibit the default frequencies which were preprogrammed
(see Table 1). The user can vary output frequencies by using
the touch pad or by programming the part with CyClocksRT.
When using an external power supply, do not connect the
board to the USB port as this may damage both your computer
and the candy board.
Table 1. Default Configuration
I/O Pin
S2/Suspend = 0
S2/Suspend = 1
CLKA
40
40
CLKB
25
25
CLKC
16.66667
16.66667
CLKD
33.33
50
CLKE
66.66
100
XBUF
10
10
Document #38-07128 Rev. **
SMA Connections
Each clock output probe point has the ground plane exposed
on either side to enable a user to solder on an SMA connector.
Due to space restrictions, only every other clock output can
have an SMA connector.
Using CyClocksRT with Peppermint Board
Users can also program the part using the Cypress
CyclocksRT software that is found on the web. There are two
ways the user can program the part on the candy boards:
either open up a new or existing CY22393 JEDEC file, or
select the “Options” menu and click on “Candy Board Setup”
to program the part.
Using a CY22393 JEDEC File in CyClocksRT to Program the
Part
The crystal embedded on the boards are 10-MHz crystals, so
users should input 10-MHz as their REF when trying to
program the part on-board with CyClocksRT.
Using the first option, the user can program the part on the
candy board by opening a new or existing CY22393 JEDEC
file. Once the candy board is plugged in, a “Send” button
should appear on the bottom of the file next to the “Calculate”
button. Once the desired configuration is set, the user should
click on “Calculate” and then click on the “Send” button to send
the program to the board. The LED on the board should blink
and then stop, indicating that it has received the data.
Using the Candy Board Setup in CyClocksRT to Program the
Part
If the user wants to program the board with a file that is not the
currently opened version, they can do so using the “Candy
Board Setup” option. Under the Options menu, select “Candy
Board Setup.” This will bring up the Candy Board Setup
window. Select “CY22393” under “Candy Board List.” By
clicking on “Load Jedec,” the user can select a file that is
stored on the computer in order to program the candy board.
Page 2 of 4
CY30701
Figure 1. Candy Board Set-up Window
Windows is a trademark of Microsoft Corporation. CYClocksRT is a trademark of Cypress Semiconductor Corporation. All
product and company names mentioned in this document are the trademarks of their respective holders.
Document #38-07128 Rev. **
Page 3 of 4
CY30701
Document Title: CY30701 Peppermint Board (CY22393 Candy Board)
Document Number: 38-07128
REV.
ECN NO.
Issue
Date
Orig. of
Change
**
110089
02/19/02
CKN
Document #38-07128 Rev. **
Description of Change
New Data Sheet
Page 4 of 4
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