Seagate ST1.2 - Series 8 GB Removable Hard Drive Product Manual page 34

Table 9: Flex interface connector signals
24 DD9 Data bus bit 9
25 GROUND Ground
26 DD13 Data bus bit 13
27 CSEL Cable select
28 DD12 Data bus bit 12
29 DD7 Data bus bit 7
30 DD6 Data bus bit 6
31 DD5 Data bus bit 5
32 DD4 Data bus bit 4
33 DD3 Data bus bit 3
34 DD2 Data bus bit 2
35 GROUND Ground
36 DD1 Data bus bit 1
37 DD0 Data bus bit 0
38 DMARQ DMA request
39 DMACK- DMA Acknowledge
40 IOCS16- Data transfer size is one word per transfer cycle
41 CS0 Chip select 0
42 Reserved 1 Reserved for device use only
43 Reserved 2 Reserved for device use only
44 VCC +3.3V 3.3V Voltage supply to device
45 VCC +3.3V 3.3V Voltage supply to device
28 ST1.2 Series Product Manual, Rev. B