81x0-registermap

Offset	Bits	Name	Access	Description
0x0	15:0	Board ID	Read Only	Returns '0x8100'
0x2	3:0	PLD revision	Read Only
	7:4	LCD Contrast	Read/Write
	8	USB Reset	Read/Write	Allows you to reset the USB hub
	9	ISA Reset	Read/Write
	10	Enable Oscillator	Read/Write
	11	Enable RS-232	Read/Write
	12	Enable LCD Power	Read/Write
	13	CAN1 Standby	Read/Write
	14	CAN2 Standby	Read/Write
	15	LCD Contrast Enable	Read/Write
0x4	7:0	Odd numbered pins 15:1	Read/Write	Output data on the DIO header
	13:8	PC104 pins A21:A16	Read/Write	Output data on PC104 header
	15:14	PC104 pins B12:B11	Read/Write	Output data on PC104 header
0x6	7:0	Pins 14-7 data	Read Only	LCD data lines output data
	8	LCD Write/Read (pin 6)	Read/Write	LCD Header pin 6 output data
	9	LCD Register Select (pin 3)	Read/Write	LCD Header pin 3 output data
	10	LCD Enable (pin 5)	Read/Write	LCD Header pin 5 output data
	11	AVR MOSI	Read/Write
	12	AVR SCLK	Read/Write
	13	AVR RESET	Read/Write
	14:15	Reserved	N/A
0x8	7:0	DIO data direction (odd pins 15:1)	Read/Write	DIO Header data direction
	13:8	PC104 pins A21:A16	Read/Write	PC104 GPIO data direction
	15:14	PC104 pins B12:B11	Read/Write	PC104 GPIO data direction
0xa	7:0	Pins 14-7 direction	Read Only	LCD GPIO data direction
	8	LCD Write/Read (pin 6)	Read/Write	LCD Header pin 6 data direction
	9	LCD Register Select (pin 3)	Read/Write	LCD Header pin 3 data direction
	10	LCD Enable (pin 5)	Read/Write	LCD Header pin 5 data direction
0xc	7:0	DIO Input Data (odd pins 15:1)	Read/Write	DIO Header input data
	13:8	PC104 pins A21:A16	Read/Write	PC104 GPIO input data
	15:14	PC104 pins B12:B11	Read/Write	PC104 GPIO input data
0xe	7:0	Pins 14-7 data	Read Only	LCD Header input data
	8	LCD Write/Read (pin 6)	Read/Write	For selecting between reads/writes
	9	LCD Register Select (pin 3)	Read/Write	Select between data and instruction registers
	10	LCD Enable (pin 5)	Read/Write	Toggles the LCD functionality
	11	AVR MISO	Read/Write
	15:12	Reserved	N/A