User`s manual

SQ575
11
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.
3.5.2 Secondary IDE Connector (40-pin block) (J9)
This connector supports two secondary channel IDE devices and 120MB Floppy drives via a
ribbon cable. When two IDE devices are installed using the secondary IDE connector make
sure that the second IDE device is adjusted to slave mode as instructed in the device’s
manual.
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) (J8)
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 (J8). The floppy disk
interface includes 48mA drivers and Schmit inputs on the drive interface.