Connections

Coordinator Layout

Device	Dir	Pin	Name	Register	Chip	Register	Name	Pin	Dir	Device
Crank and Cam	→	1	TRIG_0	PA0	Coordinator	PA31	BUS_RX	40	←	Supervisor
	→	2	TRIG_1	PA1		PA30	BUS_TX	39	→
	→	3	TRIG_2	PA2		PA29	SDL	38	↔	EEPROM
Ignition Switch	→	4	RUN	PA3		PA28	SCL	37	→
Injectors	←	5	INJ_0	PA4		PA27	IGN_11	36	→	Ignitors
	←	6	INJ_1	PA5		PA26	IGN_10	35	→
	←	7	INJ_2	PA6		PA25	IGN_9	34	→
	←	8	INJ_3	PA7		PA24	IGN_8	33	→
	←	13	INJ_4	PA8		PA23	IGN_7	28	→
	←	14	INJ_5	PA9		PA22	IGN_6	27	→
	←	15	INJ_6	PA10		PA21	IGN_5	26	→
	←	16	INJ_7	PA11		PA20	IGN_4	25	→
	←	17	INJ_8	PA12		PA19	IGN_3	24	→
	←	18	INJ_9	PA13		PA18	IGN_2	23	→
	←	19	INJ_10	PA14		PA17	IGN_1	22	→
	←	20	INJ_11	PA15		PA16	IGN_0	21	→

Supervisor Layout

Device	Dir	Pin	Name	Register	Chip	Register	Name	Pin	Dir	Device
Coordinator	←	1	BUS_TX	PA0	Supervisor	PA31	SER_RX	40	←	USB
	→	2	BUS_RX	PA1		PA30	SER_TX	39	→
Ignition Switch	→	3	START	PA2		PA29	I2C_SDL	38	↔	EEPROM, RTC
	→	4	RUN	PA3		PA28	I2C_SCL	37	→
Idle Valve	←	5	IAC_0	PA4		PA27	ADC_DI1	36	←	ADC
	←	6	IAC_1	PA5		PA26	ADC_DI0	35	←
	←	7	IAC_2	PA6		PA25	ADC_SDL	34	→
	←	8	IAC_3	PA7		PA24	ADC_SCL	33	→
Cooling Fans	←	13	FAN_0	PA8		PA23	IO_11	28	↔	Spare I/O
	←	14	FAN_1	PA9		PA22	IO_10	27	↔
Fuel Pump	←	15	FPUMP	PA10		PA21	IO_9	26	↔
Tach Output	←	16	TACH	PA11		PA20	IO_8	25	↔
Spare I/O	↔	17	IO_0	PA12		PA19	IO_7	24	↔
	↔	18	IO_1	PA13		PA18	IO_6	23	↔
	↔	19	IO_2	PA14		PA17	IO_5	22	↔
	↔	20	IO_3	PA15		PA16	IO_4	21	↔

Riser Connections: Mainboard to Processing Board

Connector List
ID	Pins	Type	Function
H16A	16	? x ? header	Analog Inputs
H16B	16	? x ? header	Digital I/O (Logic Level)
H16C	16	? x ? header	Power, Communications, Outputs (Logic Level)
H12A	12	? x ? header	Injector Outputs (Logic Level)
H12B	12	? x ? header	Ignition Outputs (Logic Level)

Connector H16A: Analog Inputs
Pin	Direction	ID	Name	Description
1	IN	ADC[0]:0 "MAP"	Manifold Air Pressure	Absolute air pressure in manifold
2	IN	ADC[0]:1 "MAT"	Manifold Air Temperature	Air temperature in intake manifold
3	IN	ADC[0]:2 "CLT"	Coolant Temperature	Coolant temperature leaving water jacket
4	IN	ADC[0]:3 "BATV"	Battery Voltage	Voltage as measured at battery
5	IN	ADC[0]:4 "TPS"	Throttle Position	Throttle position
6	IN	ADC[0]:5 "BARO"	Barometric Pressure	Atmospheric pressure
7	IN	ADC[0]:6 "AMBT"	Ambient Temperature	Ambient outdoor temperature
8	IN	ADC[0]:7 "EGO"	Exhaust Gas Oxygen	Air:fuel ratio, narrow or wideband
9	IN	ADC[1]:0 ""	Spare AI 0	Spare Analog Input
10	IN	ADC[1]:1 ""	Spare AI 1	Spare Analog Input
11	IN	ADC[1]:2 ""	Spare AI 2	Spare Analog Input
12	IN	ADC[1]:3 ""	Spare AI 3	Spare Analog Input
13	IN	ADC[1]:4 ""	Spare AI 4	Spare Analog Input
14	IN	ADC[1]:5 ""	Spare AI 5	Spare Analog Input
15	IN	ADC[1]:6 ""	Spare AI 6	Spare Analog Input
16	IN	ADC[1]:7 ""	Spare AI 7	Spare Analog Input

Connector H16B: Digital I/O (Logic Level)
Pin	Direction	ID	Name	Description
1	IN	TRIG_0	Trigger 0	Signal from engine position sensor
2	IN	TRIG_1	Trigger 1	Signal from engine position sensor
3	IN	RUN	Run Status	Input from ignition switch (run position)
4	IN	START	Cranking Status	Input from ignition switch (start position)
5	BIDIR	IO_0	Spare I/O 0	Spare input or output
6	BIDIR	IO_1	Spare I/O 1	Spare input or output
7	BIDIR	IO_2	Spare I/O 2	Spare input or output
8	BIDIR	IO_3	Spare I/O 3	Spare input or output
9	BIDIR	IO_4	Spare I/O 4	Spare input or output
10	BIDIR	IO_5	Spare I/O 5	Spare input or output
11	BIDIR	IO_6	Spare I/O 6	Spare input or output
12	BIDIR	IO_7	Spare I/O 7	Spare input or output
13	BIDIR	IO_8	Spare I/O 8	Spare input or output
14	BIDIR	IO_9	Spare I/O 9	Spare input or output
15	BIDIR	IO_10	Spare I/O 10	Spare input or output
16	BIDIR	IO_11	Spare I/O 11	Spare input or output

Connector H16C: Power, Communications, and Outputs (Logic Level)
Pin	Direction	ID	Name	Description
1	OUT	SER_TX	Serial Transmit	Serial Transmit to Host
2	IN	SER_RX	Serial Receive	Serial receive from host
3	IN	VBATT	12V Power	Vehicle Power In 10-14V
4	OUT	VCC	5V Power	TTL Power to Host
5	OUT	VDD	3.3V Power	CMOS Voltage to Host
6	GND	VSS	Ground	Serial Ground
7	GND	VSS	Ground	ADC Ground
8	GND	VSS	Ground	I/O Ground
9	OUT	IAC_0	Idle Air Control 0
10	OUT	IAC_1	Idle Air Control 1
11	OUT	IAC_2	Idle Air Control 2
12	OUT	IAC_3	Idle Air Control 3
13	OUT	FAN_0	Fan Control 0
14	OUT	FAN_1	Fan Control 1
15	OUT	FPUMP	Fuel Pump Control
16	OUT	TACHO	Tachometer Output

Connector H12A: Injector Outputs (Logic Level)
Pin	Direction	ID	Name	Description
1	OUT	INJ_0	Injection Control 0	Signal to injector driver
2	OUT	INJ_1	Injection Control 1	Signal to injector driver
3	OUT	INJ_2	Injection Control 2	Signal to injector driver
4	OUT	INJ_3	Injection Control 3	Signal to injector driver
5	OUT	INJ_4	Injection Control 4	Signal to injector driver
6	OUT	INJ_5	Injection Control 5	Signal to injector driver
7	OUT	INJ_6	Injection Control 6	Signal to injector driver
8	OUT	INJ_7	Injection Control 7	Signal to injector driver
9	OUT	INJ_8	Injection Control 8	Signal to injector driver
10	OUT	INJ_9	Injection Control 9	Signal to injector driver
11	OUT	INJ_10	Injection Control 10	Signal to injector driver
12	OUT	INJ_11	Injection Control 11	Signal to injector driver

Connector H12B: Ignition Outputs (Logic Level)
Pin	Direction	ID	Name	Description
1	OUT	IGN_0	Ignition Control 0	Signal to ignition driver
2	OUT	IGN_1	Ignition Control 1	Signal to ignition driver
3	OUT	IGN_2	Ignition Control 2	Signal to ignition driver
4	OUT	IGN_3	Ignition Control 3	Signal to ignition driver
5	OUT	IGN_4	Ignition Control 4	Signal to ignition driver
6	OUT	IGN_5	Ignition Control 5	Signal to ignition driver
7	OUT	IGN_6	Ignition Control 6	Signal to ignition driver
8	OUT	IGN_7	Ignition Control 7	Signal to ignition driver
9	OUT	IGN_8	Ignition Control 8	Signal to ignition driver
10	OUT	IGN_9	Ignition Control 9	Signal to ignition driver
11	OUT	IGN_10	Ignition Control 10	Signal to ignition driver
12	OUT	IGN_11	Ignition Control 11	Signal to ignition driver

Supervisor Chip

Supervisor Chip I/O and Registers
Pin	Register	Direction	ID	Name	Description
1	PA0	OUT	BUS_TX	Data Bus Transmit	High speed serial transmit to coordinator
2	PA1	IN	BUS_RX	Data Bus Receive	High speed serial receive from coordinator
3	PA2	IN	START	Cranking Status	Input from ignition switch (start position)
4	PA3	IN	RUN	Run Status	Input from ignition switch (run position)
5	PA4	OUT	IAC_0	Idle Air Control 0	Signal to idle air valve driver
6	PA5	OUT	IAC_1	Idle Air Control 1	Signal to idle air valve driver
7	PA6	OUT	IAC_2	Idle Air Control 2	Signal to idle air valve driver
8	PA7	OUT	IAC_3	Idle Air Control 3	Signal to idle air valve driver
13	PA8	OUT	FAN_0	Cooling Fan Control 0	Signal to cooling fan relay driver
14	PA9	OUT	FAN_1	Cooling Fan Control 1	Signal to cooling fan relay driver
15	PA10	OUT	FPUMP	Fuel Pump Control	Signal to fuel pump relay driver
16	PA11	OUT	TACH	Tachometer Output	Signal to tachometer driver
17	PA12	BIDIR	IO_0	Spare I/O 0	Spare input or output
18	PA13	BIDIR	IO_1	Spare I/O 1	Spare input or output
19	PA14	BIDIR	IO_2	Spare I/O 2	Spare input or output
20	PA15	BIDIR	IO_3	Spare I/O 3	Spare input or output
21	PA16	BIDIR	IO_4	Spare I/O 4	Spare input or output
22	PA17	BIDIR	IO_5	Spare I/O 5	Spare input or output
23	PA18	BIDIR	IO_6	Spare I/O 6	Spare input or output
24	PA19	BIDIR	IO_7	Spare I/O 7	Spare input or output
25	PA20	BIDIR	IO_8	Spare I/O 8	Spare input or output
26	PA21	BIDIR	IO_9	Spare I/O 9	Spare input or output
27	PA22	BIDIR	IO_10	Spare I/O 10	Spare input or output
28	PA23	BIDIR	IO_11	Spare I/O 11	Spare input or output
33	PA24	OUT	ADC_SCL	ADC Clock	Clock signal to ADC chips
34	PA25	OUT	ADC_SDL	ADC Data Out	Data signal to ADC chips
35	PA26	IN	ADC_SDI0	ADC Data In 0	Data signal from ADC chips
36	PA27	IN	ADC_SDI1	ADC Data In 1	Data signal from ADC chips
37	PA28	OUT	I2C_SCL	EEPROM Clock	Clock signal to EEPROM chip
38	PA29	BIDIR	I2C_SDL	EEPROM Data	Data signal to/from EEPROM chip
39	PA30	OUT	SER_TX	Serial Transmit	Serial transmit to host
40	PA31	IN	SER_RX	Serial Receive	Serial receive from host

Coordinator Chip

Coordinator Chip I/O and Registers
Pin	Register	Direction	ID	Name	Description
1	PA0	IN	TRIG_0	Trigger 0	Signal from engine position sensor
2	PA1	IN	TRIG_1	Trigger 1	Signal from engine position sensor
3	PA2	IN	TRIG_2	Trigger 2	Signal from engine position sensor
4	PA3	IN	RUN	Run Status	Input from ignition switch (run position)
5	PA4	OUT	INJ_0	Injection Control 0	Signal to injector driver
6	PA5	OUT	INJ_1	Injection Control 1	Signal to injector driver
7	PA6	OUT	INJ_2	Injection Control 2	Signal to injector driver
8	PA7	OUT	INJ_3	Injection Control 3	Signal to injector driver
13	PA8	OUT	INJ_4	Injection Control 4	Signal to injector driver
14	PA9	OUT	INJ_5	Injection Control 5	Signal to injector driver
15	PA10	OUT	INJ_6	Injection Control 6	Signal to injector driver
16	PA11	OUT	INJ_7	Injection Control 7	Signal to injector driver
17	PA12	OUT	INJ_8	Injection Control 8	Signal to injector driver
18	PA13	OUT	INJ_9	Injection Control 9	Signal to injector driver
19	PA14	OUT	INJ_10	Injection Control 10	Signal to injector driver
20	PA15	OUT	INJ_11	Injection Control 11	Signal to injector driver
21	PA16	OUT	IGN_0	Ignition Control 0	Signal to ignition driver
22	PA17	OUT	IGN_1	Ignition Control 1	Signal to ignition driver
23	PA18	OUT	IGN_2	Ignition Control 2	Signal to ignition driver
24	PA19	OUT	IGN_3	Ignition Control 3	Signal to ignition driver
25	PA20	OUT	IGN_4	Ignition Control 4	Signal to ignition driver
26	PA21	OUT	IGN_5	Ignition Control 5	Signal to ignition driver
27	PA22	OUT	IGN_6	Ignition Control 6	Signal to ignition driver
28	PA23	OUT	IGN_7	Ignition Control 7	Signal to ignition driver
33	PA24	OUT	IGN_8	Ignition Control 8	Signal to ignition driver
34	PA25	OUT	IGN_9	Ignition Control 9	Signal to ignition driver
35	PA26	OUT	IGN_10	Ignition Control 10	Signal to ignition driver
36	PA27	OUT	IGN_11	Ignition Control 11	Signal to ignition driver
37	PA28	OUT	I2C_SCL	EEPROM Clock	Clock signal to EEPROM chip
38	PA29	BIDIR	I2C_SDL	EEPROM Data	Data signal to/from EEPROM chip
39	PA30	OUT	BUS_TX	Data Bus Transmit	High speed serial transmit to supervisor
40	PA31	IN	BUS_RX	Data Bus Receive	High speed serial transmit from supervisor