IBM 2274 manual IDE Cable Connector Signals

IDE Cable Connector Signals

Pin	Signal	I/O	Pin	Signal	I/O
	Name			Name
1	Host Reset	O	21	No
				Connection
2	Ground		22	Ground
3	Host Data 7	I/O	23	Host IOW	O
4	Host Data 8	I/O	24	Ground	Power
5	Host Data 6	I/O	25	Host IOR	O
6	Host Data 9	I/O	26	Ground	Power
7	Host Data 5	I/O	27	I/O Channel	I
				Ready
8	Host Data	I/O	28	No
	10			Connection
9	Host Data 4	I/O	29	No
				Connection
10	Host Data	I/O	30	Ground	Power
	11
11	Host Data 3	I/O	31	Host IRQ	I
12	Host Data	I/O	32	No
	12			Connection
13	Host Data 2	I/O	33	Host A1	O
14	Host Data	I/O	34	No
	13			Connection
15	Host Data 1	I/O	35	Host A0	O
16	Host Data	I/O	36	Host A2	O
	14
17	Host Data 0	I/O	37	Host CS0	O
18	Host Data	I/O	38	Host CS1	O
	15
19	Ground	Power	39	ACTIVE ba	I
20	No		40	Ground	Power
	Connection

130 IBM Desktop System HMM