Connection net list of G2BUS and ISA NE2000 bridge

G2-ISA-NE2000-connection-20190909.txt

Connection net list of G2BUS and ISA NE2000 bridge 
------------------------------------------------------------
G2BUS
GND	10 11 12 23 24 41 42 44 45 47 48 (ISA, LCX)
+5V	1 2 3 4 (ISA)
+3.3V	17 18 19 (LCX)
RD	16 (IOR, DIR (LCX245))
MODEMCS	5  (AEN, OE (LCX245))
------------------------------------------------------------
LCX245 (D0-D7)
	10 GND
	20 +3.3V
RD	1  DIR
MODEMCS	19 -OE
------------------------------------------------------------
LCX541 (A0-A7)
	10 GND
	20 +3.3V
GND	1  -OE1
GND	19 -OE2
------------------------------------------------------------
LCX541 (-RD/-WR/-MODEMCS/A8/IOCHRDY)
	10 GND
	20 +3.3V
GND	1  -OE1
GND	19 -OE2
------------------------------------------------------------
LCX04
	7  GND
	14 +3.3V
	3  GND unused
	5  GND unused
	9  GND unused
	11 GND unused
------------------------------------------------------------
ISA (View from solder side)

G2		I/F			ISA		ISA			I/F		G2

						+-----+
		(NC)			-IOCHK	|[] []|	GND			<->		GND
D7 33	A1 2	LCX245	B1 18		SD7	|[] []|	RESETDRV	2	LCX04	1	-RESET	46
D6 34	A2 3	LCX245	B2 17		SD6	|[] []|	+5V			<-		+5V
D5 35	A3 4	LCX245	B3 16		SD5	|[] []|	IRQ9 (4.7k PD) 13	LCX04	12	-IRQA	6
D4 36	A4 5	LCX245	B4 15		SD4	|[] []|	-5V			(NC)		-
D3 37	A5 6	LCX245	B5 14		SD3	|[] []|	DRQ2			(NC)		-
D2 38	A6 7	LCX245	B6 13		SD2	|[] []|	-12V			(NC)		-
D1 39	A7 8	LCX245	B7 12		SD1	|[] []|	-OWS			(NC)		-
D0 40	A8 9	LCX245	B8 11		SD0	|[] []|	+12V			(NC)		-
CS 22	O4 14	LCX541	I4  6 (4.7k PU)	IOCHRDY	|[] []|	GND			<->		GND
MCS 5	I7  9	LCX541	O7 11		AEN	|[] []|	-SMEMW			(NC)		-
-		GND			SA19	|[] []|	-SMEMR			(NC)		-
-		GND			SA18	|[] []|	-IOW		O5 13	LCX541	I5 7	-WR	14
-		GND			SA17	|[] []|	-IOR		O6 12	LCX541	I6 8	-RD	16
-		GND			SA16	|[] []|	-DACK3			(NC)		-
-		GND			SA15	|[] []|	DRQ3			(NC)		-
-		GND			SA14	|[] []|	-DACK1			(NC)		-
-		GND			SA13	|[] []|	DRQ1			(NC)		-
-		GND			SA12	|[] []|	-REFRESH		(NC)		-
-		GND			SA11	|[] []|	CLK			(NC)		-
-		GND	     		SA10	|[] []|	IRQ7			(NC)		-
-		+5V	(4.7k PU)	SA9	|[] []|	IRQ6			(NC)		-
A8 20	I3 5	LCX541	O3 15		SA8	|[] []|	IRQ5			(NC)		-
A7 25	I0 2	LCX541	O0 18		SA7	|[] []|	IRQ4			(NC)		-
A6 26	I1 3	LCX541	O1 17		SA6	|[] []|	IRQ3			(NC)		-
A5 27	I2 4	LCX541	O2 16		SA5	|[] []|	-DACK2			(NC)		-
A4 28	I3 5	LCX541	O3 15		SA4	|[] []|	TC			(NC)		-
A3 29	I4 6	LCX541	O4 14		SA3	|[] []|	BALE			(NC)		-
A2 30	I5 7	LCX541	O5 13		SA2	|[] []|	+5V			<-		+5V
A1 31	I6 8	LCX541	O6 12		SA1	|[] []|	OSC			(NC)		-
A0 32	I7 9	LCX541	O7 11		SA0	|[] []|	GND			<->		GND
						+-----+
AT 16 bit signals are unused (N/C)
						+-----+
					-SBHE	|[] []|	-MEMCS16
					LA23	|[] []|	-IOCS16
					LA22	|[] []|	IRQ10
					LA21	|[] []|	IRQ11
					LA20	|[] []|	IRQ12
					LA19	|[] []|	IRQ15
					LA18	|[] []|	IRQ14
					LA17	|[] []|	-DACK0
					-MEMR	|[] []|	DRQ0
					-MEMW	|[] []|	-DACK5
					SD8	|[] []|	DRQ5	
					SD9	|[] []|	-DACK6
					SD10	|[] []|	DRQ6
					SD11	|[] []|	-DACK7
					SD12	|[] []|	DRQ7
					SD13	|[] []|	+5V
					SD14	|[] []|	-MASTER
					SD15	|[] []|	GND
						+-----+