CY8CKIT-030 Cypress Semiconductor Corp, CY8CKIT-030 Datasheet - Page 14
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CY8CKIT-030
Manufacturer Part Number
CY8CKIT-030
Description
BOARD EVAL PSOC 3
Manufacturer
Cypress Semiconductor Corp
Series
PSOC™ 3r
Type
MCUr
Specifications of CY8CKIT-030
Contents
Board, Cables, Display, Software
Processor To Be Evaluated
CY8C38 Family
Processor Series
CY8C38
Interface Type
I2C, SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
1.8 V to 5.5 V
Core Architecture
8051
Silicon Core Number
CY8C38xxx
Silicon Family Name
PSoC
Kit Contents
Board, LCD, Cable, CD, Guide
Features
High Precision Analog
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
PSoC® 3
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
428-3090
Hardware
4.2.1.1
4.2.1.2
14
Power Supply Jumper Settings
Figure 4-3. Jumper Settings
Two jumpers govern the power rails on the board. J10 is responsible for the selection of Vddd (digital
power) and J11 selects Vdda (analog power).
The jumper settings for each power scheme are as follows.
Warning:
■
■
Grounding Scheme
The board is designed considering analog designs as major target applications. Therefore, the
grounding scheme in the board is unique to ensure precision analog performance.
There are three types of ground on this board:
■
■
■
When creating custom circuitry in the prototyping area provided on the board, remember to use the
Vssa for the sensitive analog circuits and Vssd for the digital ones.
Port E on the board is the designated analog expansion connector. This connector brings out
ports 0, 3, and 4, which are the best performing analog ports on PSoC 3 and PSoC 5 devices. The
expansion connector, port E, has two types of grounds. One is the analog ground (GND_A in silk
Vdda = 5 V, Vddd = 5 V
Vdda = 3.3 V, Vddd = 3.3 V
Vdda = 5 V, Vddd = 3.3 V
Vdda = 3.3 V, Vddd = 5 V
The PSoC device performance is guaranteed when Vdda is greater than or equal to Vddd. Fail-
ure to meet this condition can have implications on the silicon performance.
When USB power is used, ensure a 3.3 V setting on both analog and digital supplies. This is
because, the 5 V rail of the USB power is not accurate and is not recommended.
GND - This is the universal ground where all the regulators are referred. Both Vssd and Vssa
connect to this ground through a star connection.
Vssd - This is the digital ground and covers the digital circuitry present on the board, such as
RS232 and LCD.
Vssa - This is the analog ground and covers the grounding for analog circuitry present on the
board, such as the reference block.
Powering Scheme
J10 in 5 V setting and J11 in 5 V setting.
J10 in 3.3 V setting and J11 in 3.3 V setting.
J10 in 3.3 V setting and J11 in 5 V setting.
Can be achieved, but is an invalid condition because the PSoC 3 silicon
performance cannot be guaranteed.
CY8CKIT-030 PSoC 3 Development Kit Guide, Doc. # 001-61038 Rev. *A
Jumper Settings