Excell Ocean Specifications download pdf (Page 28)

B: HR4000 Specifications

20 210-00000-000-02-201502

Function Input/Output Description

6 I

C SCL Input/Output I

C clock signal for communication to other I

C peripherals

7 GPIO (0) Input/Output

General purpose software-programmable, digital input/output

(channel number)

8 I

C SDA Input/Output I

C data signal for communication to other I

C peripherals

9 GPIO (1) Input/Output

General purpose software-programmable, digital input/output

(channel number)

Ext.

Trigger In

Input

TTL input trigger signal – See External Triggering Options document

for info.

11 GPIO (3) Input/Output

General purpose software-programmable, digital input/output

(channel number)

, V

USB

or 5V

Input or

Output

Input power pin for HR4000 – When operating via USB, this pin can

power other peripherals – Ensure that peripherals comply with USB

specifications

SPI Data

Out

Output

SPI Master Out Slave In (MOSI) signal for communication to other

SPI peripherals

, V

USB

or 5V

Input or

Output

Input power pin for HR4000 – When operating via USB, this pin can

power other peripherals – Ensure that peripherals comply with USB

specifications

SPI Data

Input

SPI Master In Slave Out (MISO) signal for communication to other

SPI peripherals

16 GPIO (4) Input /Output

General purpose software-programmable, digital input/output

(channel number)

Single

Strobe

Output

TTL output pulse used as a strobe signal – Has a programmable

delay relative to the beginning of the spectrometer integration period

18 GPIO (5) Input/Output

General purpose software-programmable, digital input/output

(channel number)

19 SPI Clock Output SPI clock signal for communication to other SPI peripherals

Continuou

s Strobe

Output

TTL output signal used to pulse a strobe – Divided down from the

master clock signal

SPI Chip

Select

Output

SPI Chip/Device Select signal for communication to other SPI

peripherals

22 GPIO (6) Input/Output

General purpose software-programmable, digital input/output

(channel number)

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Excell Ocean Specifications Page 28

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