User`s manual

FR550
3-12
Pin Signal Name Pin Signal Name
1 Reset IDE 2 Ground
3 Host Data 7 4 Host Data 8
5 Host Data 6 6 Host Data 9
7 Host Data 5 8 Host Data 10
9 Host Data 4 10 Host Data 11
11 Host Data 3 12 Host Data 12
13 Host Data 2 14 Host Data 13
15 Host Data 1 16 Host Data 14
17 Host Data 0 18 Host Data 15
19 Ground 20 Key
21 DDRQ0 (DDRQ1) 22 Ground
23 I/O Write # 24 Ground
25 I/O Read # 26 Ground
27 IOCHRD 28 +5V V pull-up
29 DDACK0 (DDACK1) # 30 Ground
31 IRQ14 (IRQ15) 32 Reserved
33 Addr 1 34 Reserved
35 Addr 0 36 Addr 2
37 Chip Select 1P (1S) # 38 Chip Select 3P (3S)
39 Activity # 40 Ground
WARNING: When you connect a ribbon cable to these ports, you must orient the cable
connector so that the PIN 1 edge of the cable is at the PIN 1 end of the on-board connector.
3.5.3 Floppy Drive Connector (34-pin block) (J9)
The FDC sub-system can control three types (1.2, 1.44, and 2.88MB) of floppy drivers or
compatible tape drives. Connection to floppy drives is via a header (J9). The floppy disk
interface includes 48mA drivers and Schmit inputs on the drive interface.
Pin Signal Name Pin Signal Name
1 Ground 2 DENSEL
3 Ground 4 TP
5 Key 6 FDENIN#
7 Ground 8 FDINDX#
9 Ground 10 FDM00#
11 Ground 12 FDDS1#
13 Ground 14 FDDS0#
15 Ground 16 FDM01#
17 MSEN1 18 FDDIR#
19 Ground 20 FDSTEP#
21 Ground 22 FDWD#
23 Ground 24 FDWE#
25 Ground 26 FDTRK0#
27 MSEN0 28 FDWPD#
29 Ground 30 FDRDATA#
31 Ground 32 FDHEAD#
33 Ground 34 DSKCHG#
WARNING: When you connect a ribbon cable to this port, you must orient the cable
connector so that the PIN 1 edge of the cable is at the PIN 1 end of the on-board port.
3.5.4 Universal Serial Bus (USB) Port
This FR550 mainboard has two USB on-board header. USB devices provide a more
convenient operating environment and improve data transferring capacity. True Plug-and-
Play, this new bus technology will support over 127 different peripherals through a Hub.