Ide Drive Bus Connector Pinouts (J45); Ultra Scsi Bus Connector Pinouts (J34, J38) - Compaq AlphaPC 264DP Technical Reference Manual

AlphaPC 264DP Mainboard Connector Pinouts
2.4.4 IDE Drive Bus Connector Pinouts
Table 2–6 shows the IDE drive bus connector pinouts.
Table 2–6 IDE Drive Bus Connector Pinouts (J45)
Pin Signal
1 DRST
5 IDE_D6
9 IDE_D4
13 IDE_D2
17 IDE_D0
21 IDE_REQ0
25 IOR#
29 MACK
33 ADDR1
37 CS0#
2.4.5 Ultra SCSI Bus Connector Pinouts
Table 2–7 shows the Ultra SCSI bus connector pinouts.
Table 2–7 Ultra SCSI Bus Connector Pinouts (J34, J38)
Pin Signal
1 Gnd
5 Gnd
9 Gnd
13 Gnd
17 termpwr
21 Gnd
25 Gnd
29 Gnd
33 Gnd
37 scd14
41 scd1
45 scd5
49 Gnd
53 NC
System Configuration and Connectors
2–14
Pin Signal
2 Gnd
6 IDE_D9
10 IDE_D11
14 IDE_D13
18 IDE_D15
22 Gnd
26 Gnd
30 Gnd
34 NC
38 CS1#
Pin Signal
2 Gnd
6 Gnd
10 Gnd
14 Gnd
18 termpwr
22 Gnd
26 Gnd
30 Gnd
34 Gnd
38 scd15
42 scd2
46 scd6
50 Gnd
54 Gnd
Pin Signal Pin
3 IDE_D7 4
7 IDE_D5 8
11 IDE_D3 12
15 IDE_D1 16
19 Gnd 20
23 IDE_IOW1# 24
27 CHRDY 28
31 IRQ 32
35 ADDR0 36
39 ACT# 40
Pin Signal Pin
3 Gnd 4
7 Gnd 8
11 Gnd 12
15 Gnd 16
19 NC 20
23 Gnd 24
27 Gnd 28
31 Gnd 32
35 scd12 36
39 scdph 40
43 scd3 44
47 scd7 48
51 termpwr 52
55 atn 56
12 February 1999 – Subject To Change
Signal
IDE_D8
IDE_D10
IDE_D12
IDE_D14
NC (key pin)
Gnd
BALE
IOCS16#
ADDR2
Gnd
Signal
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
Gnd
scd13
scd0
scd4
scdpl
termpwr
Gnd