Specifications

Table Of Contents
J22
Pin A B C D
1 GND/5.0 KEY Re served +5 AD00
2 VI/O AD02 AD01 +5V
3 AD05 GND AD04 AD03
4 C/BE0* AD07 GND AD06
5 GND AD09 AD08 GND
6 AD11 VI/O AD10 M66EN
7 AD14 AD13 GND AD06
8 +3.3V C/BE1* AD15 +3.3V
9 SERR* GND SB0* PAR
10 GND PERR* +3.3V SDONE
11 STOP* +3.3V LOCK* GND
12 +3.3V TRDY* GND DEVSEL*
13 FRAME* GND IRDY* +3.3V
14 GND AD16 +3.3.V
C/BE3*
15 AD18 +3.3V AD17 GND
16 AD21 AD20 GND AD19
17 +3.3V AD23 AD22 +3.3V
18 ID SEL0 GND ID SEL1 ID SEL2
19 AD24 C/BE3* VI/O ID SEL3
20 GND AD26 AD25 GND
21 AD29 +5V AD28 AD27
22 +5V AD30 GND AD31
23 REQ0* GND REQ1* VI/O
24 GND REQ2* +5V GNT0*
25 GNT1* VI/O GNT2* GND
26 +5V CLK0 GND CLK1
27 CLK2 +5V CLK3 GND
28 GND INTD* +5V RST*
29 +12V INTA* INTB* INTC*
30 -12V Re served Re served GND/3.3V KEY
2.14 Floppy Disk In ter face
The EBC- BX 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 J10. 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 J10 con nec tor are shown on the fol low ing page:
Page 2 - 14 OPERATIONS MANUAL EBC-BX 030923
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