Extended Cap IO/HW manual for NAUTIZ X8

Here’s how the Nautiz X8 looks with the extended cap.

And here’s how it looks without the cap.

Interface description

• Connector 
  20 Pin Dual Row receptacle (2.0mm Pitch) Connector
• Part Number 
  BF075-20-A-0830-N-A (GCT)
• Pin Number 1  
  The image below shows the Top View Connector.
  
• Pin Description
   
• Recommended Mate Connector 
  2.0 mm Pitch Male Header Connector 
  Part Number: BF030-20A-B0-0800-0277-0600-L-B (GCT)

Electrical characteristics

• UART Signals
  Related Signals: UART_RXD, UART_TXD, UART_CTS, UART_RTS
  Signal levels are LVCMOS (3.3V) levels, not RS232-C levels. 
  
• Reset Signal
  Related signal: nReset
  This is an active-low open-drain output signal, which is pulled up to 3.3V by 100K ohm resistor. It can be controlled by software. The image below shows the nReset output drive.
  
• USB Host Signals
  Related signals: USB_D-, USB_D+
  Recommended speed: USB full-speed interface (12Mbps)
• 3.3V
  Voltage: 3.3V +-5%
  Max current: 3A (Continuous)
  Other specifications: TBD
• 5V
  Voltage: 5.0V +-5%
  Max current: 1.5A (Peak), 1.0A (Continuous)
  Other specifications: TBD 

Software interface

• UART
  The extension caps serial port (UART) interface can be controlled through the software port COM3:.
• Power control
  To control power out of 5 Volt (Pin 3 and Pin 5) use functions aExp5vSetPower and aExp5vGetPower.
  To control power out of 3.3 Volt (Pin 7 and Pin 9) use functions aExp3dot3vSetPower and aExp3dot3vGetPower.
  To control nRESET (Pin 10) use functions aExpRSTSet and aExpRSTGet.
  All functions you’ll find in the latest Nautiz X8 SDK.