CYUSB3KIT-001 EZ-USB FX3 Development Kit Guide, Doc. #: 001-70237 Rev. *C
79
Hardware
Figure 4-15. UART/SPI Selection Headers
Table 4-5
shows the jumper J101–J104 pin combination to select either the UART or SPI interface.
The SPI lines also connect to an onboard SPI flash, as shown in
Figure 4-16
.
Table 4-5. Jumper Pin Selection for UART and SPI I/O Lines
Jumper
Jumper Pins Shorted (UART I/O Lines)
Jumper Pins Shorted (SPI I/O Lines)
J101
1–2 (UART_RTS)
2–3 (SPI_CLK)
J102
1–2 (UART_CTS)
2–3 (SPI_SS)
J103
1–2 (UART_TX)
2–3 (SPI_MISO)
J104
1–2 (UART_RX)
2–3 (SPI_MOSI)
SPI-SCK_UART-RTS
SPI_CLK
SPI-SSN_UART-CTS
SPI_SSN
SPI-MISO_UART-TX
SPI_MISO
SPI-MOSI_UART-RX
SPI_MOSI
UART_RTS {6}
UART_CTS {6}
UART_TX {6}
UART_RX {6}
J101
HEADER_1x3_100mil
J101
HEADER_1x3_100mil
1
2
3
J102
HEADER_1x3_100mil
J102
HEADER_1x3_100mil
1
2
3
J103
HEADER_1x3_100mil
J103
HEADER_1x3_100mil
1
2
3
J104
HEADER_1x3_100mil
J104
HEADER_1x3_100mil
1
2
3
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