6.13 Digital I/O (J7)

Connector J7 provides 16 digital I/O lines from the Vortex CPU. These lines are buffered and have ESD protection to protect the CPU from potential damage. The buffers enable the direction to be programmed in 8-bit groups, using two additional GPIO lines from the Vortex processor. The direction may be set in the BIOS or by programming the CPU I/O control registers.

Signal	Definition
DIO D7-0	GPIO port 0 from Vortex CPU
DIO E7-0	GPIO port 1 from Vortex CPU
+5V	Connected to main +5V supply
Ground	Digital ground

Connector type: Standard 2mm dual row straight pin header with gold flash plating