Functional Groups; Hat 40 Way Gpio Connector - Sandbender Technology 1PICA0001 User Manual

3.2 Functional Groups

3.2.1 HAT 40 WAY GPIO CONNECTOR

This is a 40way DIL connector mounted to the underside of the board. This allows the pHAT to be
stacked on top of a Raspberry Pi board. This is the only signal interface between the Raspberry Pi and
the pHAT.
This connector contains several signal groups, several of these pins have multiple uses dependent on
configuration:
3.3V Power Supply (2 pins).
•
5.0V Power Supply (2 pins).
•
User accessible I2C bus – I2C1 (2 pins).
•
UART (2 pins).
•
SPI with 2 chip select lines – SPI0 & SPI1 (5 pins).
•
HAT Configuration I2C (2 pins).
•
General purpose digital I/O.
•
Figure 3 - GPIO Connector Block
01/06/2018
Document Number
IEMAN000001
Document Title
CAN Interface pHAT User Manual
7 of 22
Document Revision Page
R003 7 of 22