3.5 SPI/I²C Debug Ports

Figure 3-4. SPI-I²C Ports
Table 3-4. J1, SPI and I²C Port Pinout
PinSignalFunction

1

SPI_CS1

SPI chip select 1

2

SPI_CS0

SPI chip select 0

3

SPI_MISO

SPI MISO (host in/client out)

4

SPI_MOSI

SPI MISO (host out/client in)

5

SPI_SCK

SPI clock

6

GND

System ground

7

GND

System ground

8

TWCK

I²C clock

9

TWD

I²C data

10

TW_WP#

I²C write protect