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8

FT51A-EVM Development Module Datasheet

Version 1.0

Doc ument Reference N o.: FT _001140 C learance N o.: FT DI# 4 7 8

Pin No.

Name

Type

Description

CN6-18

DIO6

Signal Output

Can be used as SPI CS# to temperature sensor,

can be over written by jumper JP2.

CN6-19

SW3

Signal Input

(AIO7) Active low when SW3 pressed.

CN6-20

SW2

Signal Input

(DIO7) Active low when SW2 pressed.

CN6-21

SW4

Signal Input

(AIO8) Active low when SW4 pressed.

CN6-22

LCD_RST#

Signal Output

(DIO8) Controls the reset feature of the LCD

module

CN6-23

AIO9

I/O Signals

Unused analog IO pin

CN6-24

DIO9

Signal I/O

Unused digital IO.

CN6-25

AIO10

I/O Signals

JP3 1-2 short: Unused analog IO pin

JP3 2-3 short: No connection

CN6-26

UART RTS#

Output signal

(DIO10) UART Ready To Send signal. Active low.

CN6-27

HB_LED

Signal Output

(AIO11) Used to drive the on board heartbeat

indicator LED

CN6-28

UART RX

Signal Input

(DIO11) UART data receive signal

CN6-29

LCD_PWM (R )

Signal Output

(AIO12) control the LCD backlight red signal

CN6-30

UART CTS#

Signal Input

(DIO12) UART clear to send signal input. Active

low.

CN6-31

LCD_PWM (G)

Signal Output

(AIO13) control the LCD backlight green signal

CN6-32

I2C_SCL

Signal Output

with the LCD display

CN6-33

LCD_PWM (B)

Signal Output

(AIO14) control the LCD backlight blue signal

CN6-34

I2C_SDA

Signal IO

communicate with the LCD display

CN6-35

VBUS_PWR

Signal Input

(AIO15) Indicates if power is present on USB bus

CN6-36

UART TX

Signal

(DIO15) UART TX signal output. Active low.

CN6-37, CN6-38

GND

Ground

0V Ground

CN6-39, CN6-40

NC

-

No connection

Table 4.6 – Module IO Pin Out Description

Note: The term “Únused” means the IO pin is not used by the on-board electronics. These IOs are free to

be used by user’s add-on circuit.