Curtis AR-B1682 Component Side, PIN Assignment GND CH CHK MEMCS16 Sbhe Reset, IRQ10, IRQ9, IRQ11

A-1. ISA BUS PIN ASSIGNMENT

				COMPONENT SIDE
D18	ISA1	D1	B31		ISA2	B1
C18		C1	A31			A1

There are two edge connectors (called “gold fingers“) on this CPU Card. On the right hand is the connector of ISA Bus, beside PCI BUS connector. The ISA-bus connector is divided into two sets: one consists of 62 pins; the other consists of 36 pins.

The pin assignments are as follows:

B		A		D		C
PIN	ASSIGNMENT	PIN	ASSIGNMENT	PIN	ASSIGNMENT	PIN	ASSIGNMENT
B1	GND	A1	-I/O CH CHK	D1	-MEMCS16	C1	SBHE
B2	RESET	A2	SD07	D2	-I/OCS16	C2	LA23
B3	+5V	A3	SD06	D3	IRQ10	C3	LA22
B4	IRQ9	A4	SD05	D4	IRQ11	C4	LA21
B5	-5V	A5	SD04	D5	IRQ12	C5	LA20
B6	DRQ2	A6	SD03	D6	IRQ15	C6	LA19
B7	-12V	A7	SD02	D7	IRQ14	C7	LA18
B8	OWS	A8	SD01	D8	-DACK0	C8	LA17
B9	+12V	A9	SD00	D9	DRQ0	C9	-MEMR
B10	GND	A10	-I/O CH RDY	D10	-DACK5	C10	-MEMW
B11	-SMEMW	A11	AEN	D11	DRQ5	C11	SD08
B12	-SMEMR	A12	SA19	D12	-DACK6	C12	SD09
B13	-IOW	A13	SA18	D13	DRQ6	C13	SD10
B14	-IOR	A14	SA17	D14	-DACK7	C14	SD11
B15	-DACK3	A15	SA16	D15	DRQ7	C15	SD12
B16	-DRQ3	A16	SA15	D16	+5V	C16	SD13
B17	-DACK1	A17	SA14	D17	-MASTER	C17	SD14
B18	-DRQ1	A18	SA13	D18	GND	C18	SD15
B19	-REFRESH	A19	SA12
B20	BCLK	A20	SA11
B21	IRQ7	A21	SA10
B22	IRQ6	A22	SA09
B23	IRQ5	A23	SA08
B24	IRQ4	A24	SA07
B25	IRQ3	A25	SA06
B26	-DACK2	A26	SA05
B27	T/C	A27	SA04
B28	BALE	A28	SA03
B29	+5V	A29	SA02
B30	OSC	A30	SA01
B31	GND	A31	SA00

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