Pinbelegung

Pinbelegung für den ZIF Stecker. Es handelt sich um einen 40 poligen Stecker im 0,5 mm Raster. Bottom Contact.

Pin

Symbol

I/O

Beschreibung

1

GND


Ground 0 V


2

VDD


Power Supply 3,3 V

Stromversorgung bzw. 3,3V Ausgang bei USB Betrieb (max. 20mA)

3

RES

I

Reset

interner Pull-Up: (10..75 kΩ)

4

CS

I

SPI: Chip Select

interner Pull-Up: (1 MΩ)

5

MOSI

I

SPI: MOSI


6

MISO

O

SPI: MISO


7

CLK

I

SPI: CLK

interner Pull-Up: (1 MΩ)

8

RxD

I

RS232: Receive Data

interner Pull-Up: (1 MΩ)

9

TxD

O

RS232: Transmit Data


10

DE

O

RS485: Transmit Enable


11

SDA

I/O

I²C: Serial Data

interner Pull-Up: (10 kΩ), nachträgliche Änderung möglich

12

SCL

I

I²C: Serial Clock

interner Pull-Up: (10 kΩ), nachträgliche Änderung möglich

13

SBUF

TESTMODE

I

Low: Daten im Sendepuffer

PowerOn Low: Testmode aktiv

interner Pull-Up: (10 kΩ)

14

DPROT

I

High: Small-/Shortprotokoll aktiv

Low:  deaktiviert

interner Pull-Up: (10 kΩ)

15

A/D 0

I

Analogeingang 0

interner Pull-Down: (1 MΩ)

16

A/D 1

I

Analogeingang 1

interner Pull-Down: (1 MΩ)

17

A/D 2

I

Analogeingang 2

interner Pull-Down: (1 MΩ)

18

A/D 3

I

Analogeingang 3

interner Pull-Down: (1 MΩ)

19

I/O 0.0

I/O

I/O 0.0 (Bit 0)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

20

I/O 0.1

I/O

I/O 0.1 (Bit 1)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

21

I/O 0.2

I/O

I/O 0.2 (Bit 2)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

22

I/O 0.3

I/O

I/O 0.3 (Bit 3)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

23

I/O 0.4

I/O

I/O 0.4 (Bit 4)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

24

I/O 0.5

I/O

I/O 0.5 (Bit 5)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

25

I/O 0.6

I/O

I/O 0.6 (Bit 6)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

26

I/O 0.7

I/O

I/O 0.7 (Bit 7)

interner Pull-Up: (1 MΩ), Reset-state: Tri-State, Default direction input

27

PWM

O

PWM-Output


28

DNC

---

Do not connect

Reserved for future use.

29

DNC

---

Do not connect

Reserved for future use.

30

DNC

---

Do not connect

Reserved for future use.

31

DNC

---

Do not connect

Reserved for future use.

32

DNC

---

Do not connect

Reserved for future use.

33

DNC

---

Do not connect

Reserved for future use.

34

BUZZER

O

Tonsignal

PWM Tonsignal für den Anschluss an ein anderen/weiteren Signalgeber

35

IO SDA

I/O

I²C Data ext. Portexpander / RTC

Portexpander MCP23017-E kann hier angeschlossen werden. Für EA uniTFTs020-ATC und EA uniTFTs028-ATC: RTC MCP7940N-SN kann eine externe RTC angeschlossen werden.

36

IO CLK

O

I²C Clock ext. Portexpander / RTC

If not used please leave open

37

IO INT

I

Interrupt ext. Portexpander

If not used please leave open

38

IO RTC

I

Interrupt RTC

Nur EA uniTFTs020 und EA uniTFTs028. Wenn nicht genutzt offen lassen. EA uniTFTs035 und EA uniTFTs043: intern verbunden

39

VDD


Power Supply 3,3 V


40

GND


Ground 0 V