FTDI device pinoutΒΆ

IF/1 1

IF/2 3

UART

I2C

SPI

JTAG

C232HD cable

ADBUS0

BDBUS0

TxD

SCK

SCLK

TCK

Orange

ADBUS1

BDBUS1

RxD

SDA/O 2

MOSI

TDI

Yellow

ADBUS2

BDBUS2

RTS

SDA/I 2

MISO

TDO

Green

ADBUS3

BDBUS3

CTS

CS0

TMS

Brown

ADBUS4

BDBUS4

CS1/GPIO4

Grey

ADBUS5

BDBUS5

CS2/GPIO5

Purple

ADBUS6

BDBUS6

CS3/GPIO6

White

ADBUS7

BDBUS7

RSCK 4

CS4/GPIO7

RCLK

Blue

ACBUS0

BCBUS0

GPIO8

ACBUS1

BCBUS1

GPIO9

ACBUS2

BCBUS2

GPIO10

ACBUS3

BCBUS3

GPIO11

ACBUS4

BCBUS4

GPIO12

ACBUS5

BCBUS5

GPIO13

ACBUS6

BCBUS6

GPIO14

ACBUS7

BCBUS7

GPIO15

1

16-bit port (ACBUS, BCBUS) is not available with FT4232H series

2(1,2)

FTDI pins are either configured as input or output. As I2C SDA line is bi-directional, two FTDI pins are required to provide the SDA feature, and they should be connected together and to the SDA I2C bus line. Pull-up resistors on SCK and SDA lines should be used.

3

FT232H does not support a secondary MPSSE port, only FT2232H and FT4232H do. Note that FT4232H has 4 serial ports, but only the first two interfaces are MPSSE-capable. C232HD cable only exposes IF/1 (ADBUS).

4

In order to support I2C clock stretch mode, ADBUS7 should be connected to SCK.