IBM PS/2 - MCA-IDE (72-Pin) HDD Connector.
Pin
Signal Name
Pin
Signal Name
A1
-CD Setup
B1
Addr Bit 15
A2
Addr Bit 13
B2
Addr Bit 14
A3
Ground
B3
Ground
A4
Addr Bit 11
B4
OSC (14.3MHz)
A5
Addr Bit 10
B5
Ground
A6
Addr Bit 9
B6
Addr Bit 12
A7
+5 Vdc
B7
-CMD
A8
Addr Bit 8
A8
-CD SFDBK
A9
Addr Bit 7
B9
Ground
A10
Addr Bit 6
B10
Data Bit 1
A11
+5 Vdc
B11
Data Bit 3
A12
Addr Bit 5
B12
Data Bit 4
A13
Addr Bit 4
B13
Ground
A14
Addr Bit 3
B14
CHRESET
A15
+5 Vdc
B15
Data Bit 8
A16
Addr Bit 2
B16
Data Bit 9
A17
Addr Bit 1
B17
Ground
A18
Addr Bit 0
B18
Data Bit 12
A19
+12 Vdc
B19
Data Bit 14
A20
-ADL
B20
Data Bit 15
A21
-PREEMPT
B21
Ground
A22
-Burst
B22
Data Bit 0
A23
+5 Vdc
B23
Data Bit 2
A24
ARB 0
B24
Data Bit 5
A25
ARB 1
B25
Ground
A26
ARB 2
B26
Data Bit 6
A27
+12 Vdc
B27
Data Bit 7
A28
ARB 3
B28
Data Bit 10
A29
+ARB/-GRANT
B29
Ground
A30
-TC
B30
Data Bit 11
A31
+5 Vdc
B31
Data Bit 13
A32
-S0
B32
-SBHE
A33
-S1
B33
Ground
A34
+M/-IO
B34
-CD DS 16
A35
Ground
B35
-IRQ 14
A36
CD CHRDY
B36
Ground
Please see the LEGAL - Trademark notice.
Feel free - send a for any BUG on this page found - Thank you.