EISA

EISA=Extended Industry Standard Architecture.
Developed by Compaq, AST, Zenith, Tandy...

+---------------------------------------------+
|            (component side)                 |
|                                             |
|___________ ISA-16bit __       ISA-8bit    __|
            |||||||||||  |||||||||||||||||||  A1(front)/B1(back)
             | | | | |    | | | | | | | | |  EISA: E1(front)/F1(back)
                   C1/D1
                  G1/H1

A,C,E,G=Component Side
A,B,F,H=Sold Side

NOT DRAWN YET (At the computer)

62+38 PIN EDGE CONNECTOR at the computer.

Pin	Name	Description
E1	CMD#	Command Phase
E2	START#	Start Phase
E3	EXRDY	EISA Ready
E4	EX32#	EISA Slave Size 32
E5	GND	Ground
E6	KEY	Access Key
E7	EX16#	EISA Slave Size 16
E8	SLBURST#	Slave Burst
E9	MSBURST#	Master Burst
E10	W/R#	Write/Read
E11	GND	Ground
E12	RES	Reserved
E13	RES	Reserved
E14	RES	Reserved
E15	GND	Ground
E16	KEY	Access Key
E17	BE1#	Byte Enable 1
E18	LA31#	Latchable Addressline 31
E19	GND	Ground
E20	LA30#	Latchable Addressline 30
E21	LA28#	Latchable Addressline 28
E22	LA27#	Latchable Addressline 27
E23	LA25#	Latchable Addressline 25
E24	GND	Ground
E25	KEY	Access Key
E26	LA15	Latchable Addressline 15
E27	LA13	Latchable Addressline 13
E28	LA12	Latchable Addressline 12
E29	LA11	Latchable Addressline 11
E30	GND	Ground
E31	LA9	Latchable Addressline 9

F1	GND	Ground
F2	+5V	+5 VDC
F3	+5V	+5 VDC
F4	---
F5	---
F6	KEY	Access Key
F7	---
F8	---
F9	+12V	+12 VDC
F10	M/IO#	Memory/Input-Output
F11	LOCK#	Lock bus
F12	RES	Reserved
F13	GND	Ground
F14	RES	Reserved
F15	BE3#	Byte Enable 3
F16	KEY	Access Key
F17	BE2#	Byte Enable 2
F18	BE0#	Byte Enable 0
F19	GND	Ground
F20	+5V	+5 VDC
F21	LA29#	Latchable Addressline 29
F22	GND	Ground
F23	LA26#	Latchable Addressline 26
F24	LA24#	Latchable Addressline 24
F25	KEY	Access Key
F26	LA16	Latchable Addressline 16
F27	LA14	Latchable Addressline 14
F28	+5V	+5 VDC
F29	+5V	+5 VDC
F30	GND	Ground
F31	LA10	Latchable Addressline 10

G1	LA7	Latchable Addressline 7
G2	GND	Ground
G3	LA4	Latchable Addressline 4
G4	LA3	Latchable Addressline 3
G5	GND	Ground
G6	KEY	Access Key
G7	D17	Data 17
G8	D19	Data 19
G9	D20	Data 20
G10	D22	Data 22
G11	GND	Ground
G12	D25	Data 25
G13	D26	Data 26
G14	D28	Data 28
G15	KEY	Access Key
G16	GND	Ground
G17	D30	Data 30
G18	D31	Data 31
G19	MREQx	Master Request

H1	LA8	Latchable Addressline 8
H2	LA6	Latchable Addressline 6
H3	LA5	Latchable Addressline 5
H4	+5V	+5 VDC
H5	LA2	Latchable Addressline 2
H6	KEY	Access Key
H7	D16	Data 16
H8	D18	Data 18
H9	GND	Ground
H10	D21	Data 21
H11	D23	Data 23
H12	D24	Data 24
H13	GND	Ground
H14	D27	Data 27
H15	KEY	Access Key
H16	D29	Data 29
H17	+5V	+5 VDC
H18	+5V	+5 VDC
H19	MAKx	Master Acknowledge