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2.15
Floppy Disk In ter face
The EBC-LP sup ports up to 2 stan dard 3 1/2" or 5 1/4" PC com pati ble floppy disk drives. The drives
are con nected via the I/O con nec tor at J28. Note that the in ter con nect ca ble to the drives is a stan dard
floppy I/O ca ble used on desk- top PCs. The ca ble must have the twisted sec tion prior to the drive A
po si tion. The pin defi ni tions for the J28 con nec tor are shown here:
2.16
IDE Hard Disk In ter face
The EBC-LP sup ports stan dard IDE fixed disks through the I/O con nec tors at J30 (primary) and J29
(secondary). A red ac tiv ity LED is pres ent at D6 and D8 for the primary and secondary hard drive
controllers respectively. The pin defi ni tions for J29 and J30 are shown here:
Page 2-16
WinSystems - "The Embedded Authority"
J28
GND
1 o o 2
GND
3 o o 4
GND
5 o o 6
GND
7 o o 8
GND
9 o o 10
GND
11 o o 12
GND
13 o o 14
GND
15 o o 16
GND
17 o o 18
GND
19 o o 20
GND
21 o o 22
GND
23 o o 24
GND
25 o o 26
GND
27 o o 28
GND
29 o o 30
GND
31 o o 32
GND
33 o o 34
J29 and J30
RST
1 o o 2
D7
3 o o 4
D6
5 o o 6
D5
7 o o 8
D4
9 o o 10
D3
11 o o 12
D2
13 o o 14
D1
15 o o 16
D0
17 o o 18
LED
19 o o 20
DRQ
21 o o 22
IOW
23 o o 24
IOR
25 o o 26
RDY
27 o o 28
DACK
29 o o 30
IRQ
31 o o 32
A1
33 o o 34
A0
35 o o 36
CS1
37 o o 38
VCC
39 o o 40
EBC-LP OPERATIONS MANUAL
RPM/LC
N/C
N/C
INDEX
MTR0
DRV1
DRV0
MTR1
DIR
STEP
WDATA
WGATE
TRK0
WPRT
RDATA
HDSEL
DSKCHG
GND
D8
D9
D10
D11
D12
D13
D14
D15
N/C
GND
GND
GND
NC
GND
NC
NC
A2
CS3
GND
030530
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