CYUSB3KIT-001 Cypress Semiconductor, CYUSB3KIT-001 Datasheet - Page 16

• Manufacturer Part Number: CYUSB3KIT-001
• Description: Interface Development Tools USB controller Development Kit
• Manufacturer: Cypress Semiconductor

Specifications of CYUSB3KIT-001

• Rohs: yes
• Tool Is For Evaluation Of: EZ-USB FX3
• Interface Type: I2C
• Operating Supply Voltage: 5 V
• Factory Pack Quantity: 1

2.1.8
2.1.8.1
2.1.8.2
2.1.8.3
CYUSB3KIT-001 EZ-USB FX3 Development Kit Guide, Doc. #: 001-70237 Rev. *A
Low Performance Peripherals (LPP)
EZ-USB FX3 consists of the following low performance peripherals:
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JTAG
FX3's JTAG interface provides a standard five-pin interface for connecting to a JTAG debugger. This
enables to debug the firmware through the CPU core's on-chip debug circuitry. Industry standard
debugging tools for the ARM926E-J-S core can be used for FX3 application development. The JTAG
pins of FX3 come out on J51. See the SDK documentation for details on the debugger.
I2S
EZ-USB FX3 has an I2S port to support external audio codec devices. FX3 functions as an I2S mas-
ter (transmitter only). The I2S interface consists of four signals: clock line (I2S_CLK), serial data line
(I2S_SD), word select line (I2S_WS), and master system clock (I2S_MCLK). FX3 can generate the
system clock as an output on the I2S_MCLK line or accept an external system clock input on the
same line. All four I2S lines come out on header J20.
SPI and UART
EZ-USB FX3 supports an SPI master interface on the serial peripherals port. The SPI GPIOs are
shared with the UART GPIOs on the FX3 device. Even though the data sheet shows that SPI and
UART can be used simultaneously in a non 32-bit data path situation, the FX3 DVK design does not
allow that. Selection between UART and SPI is made on the board to be able to use either the SPI
interface or the UART interface.
Figure 2-13. SPI/UART Selection Headers
If 1 and 2 are shorted on J101, J102, J103, and J104, then the FX3 device will be connected to an
RS-232 connector for UART operation. If 2 and 3 are shorted on these four jumpers, the SPI inter-
face of FX3 will come out to J34 only. In this case, the RS-232 connector is disconnected from the
FX3 device.
JTAG
I2S
SPI and UART
Getting Started
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