Kontron JRexplus-DC - Manual (Page 30)

KTD-S0008-F Page 25 EIDE Interface (P-ATA)
JRexplus-DC User's Guide
11 EIDE Interface (P-ATA)
The JRexplus-DC features one EIDE interface (up to UDMA5 mode) that can drive two hard disks. When two
devices share a single adapter they are connected in a master/slave, daisy-chain configuration. If only one
drive is connected you must set it as master. Alternatively the same interface can be used for Compact Flash
card applications.
Note: The connector of the JRexplus-DC was intended for the use with a cable link. When a KONTRON chip-
disk or a CF card adapter is used the PCB's of these components point away from the board.
11.1 Connector
The EIDE interface is available through connector J13 (44 pins). It is designed in 2 mm grid for connectivity
to a 2.5” hard disk. You can use two cables to directly connect a disk in a 2.5” form factor (KAB-IDE-2MM,
part number 96021-0000-00-0) or a 3.5” form factor (KAB-IDE-25, part number 96020-0000-00-0).
Header Pin Signal Name Function Pin Signal Name Function
1 /RESET Reset 2 GND Ground
3 D7 Data 7 4 D8 Data 8
5 D6 Data 6 6 D9 Data 9
7 D5 Data 5 8 D10 Data 10
9 D4 Data 4 10 D11 Data 11
11 D3 Data 3 12 D12 Data 12
13 D2 Data 2 14 D13 Data 13
15 D1 Data 1 16 D14 Data 14
17 D0 Data 0 18 D15 Data 15
19 GND Ground 20 Key (N.C.) Key pin
21 DRQ DMA request 22 GND Ground
23 /IOW I/O write 24 GND Ground
25 /IOR I/O read 26 GND Ground
27 IOCHRDY I/O channel ready 28 CSEL 2) Cable select
29 /DACK DMA acknowledge 30 GND Ground
31 IRQ Interrupt request 32 N.C. Not connected
33 SA1 Address 1 34 ATAD UDMA detection
35 SA0 Address 0 36 SA2 Address 2
37 /CS1 Chip select 1 38 /CS3 Chip select 3
39 ACT Drive activity 40 GND Ground
41 VCC 1) Power +5V 42 VCC 1) Power +5V
43 GND Ground 44 N.C. Not connected
Note: 1) To protect the external power lines of peripheral devices make sure that
- the wires have the right diameter to withstand the maximum available current.
- to enclosure of the peripheral device fulfills the fire-protecting conditions of IEC/EN 60950.
2) Pin 28 is connected with 470 Ω to Ground for Cable Select IDE devices.