18
3.10 Enhanced Multi-IO
3.10.1 J11 FDC Connector
J11 is a 34 pins interna l Floppy port connector. Use 34 pins fla t ca ble to
connect between this connector a nd floppy drives.
1
2
33
34
3.10.2 J12 Printer Connector
J12 is a 26 pins connector for pa ra llel port. Use a 26 pin IDC fla t ca ble to
convert interna l port to a sta nda rd 25 pin externa l D-Sub connector.
P
R
I
N
T
1
14
13
26
Following selection is a ll controled by the BIOS:
ECP Mode DMA Channel Select by BIOS
printer Port Address and IRQ Select by BIOS
(378h/3BC with IRQ7, 278h with IRQ5.)
Printer and IEEE 1284 cable
The IEEE 1284 compliant cables have better features on the
following:
⚫
Twisted pa irs of conductors
⚫
Full foil shield
⚫
Wire bra id
⚫
Controlled impeda nce -- 62 ohm
⚫
Limited cross-wa lk
With these fea tures will gua ra ntee the IEEE 1284 ca ble perform a t
much higher ba ndwidth ra tes tha t the fa st Centronics, EPP a nd ECP
modes perform a t.
Summary of Contents for P55TU
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