Octagon 6000 Series, User Manual

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B-6
6020 technical data 6000 Series user’s manual
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Jumper settings
Table B-5 6020 jumper settings: W1 and W2
Jumper
position
Pins Description
"S" W1[1–2]* USESETUP
"X" W1[3–4]* BIOS extension enable
"N" W1[5–6]* Network mode
"T" W1[7–8]* Turbo mode
"IA" W2[7–8]* IO RGE SEL A
"IB" W1[9–10]* IO RGE SEL B
"B" W2[9–10] BIOS device
— W2[1–2]* Sets CTC CLK2 to 7.159 MHz
— W2[2–4] Sets CTC CLK2 to 1.843 MHz
— W2[5–6] CTC Gate Control for gates 0 and 1
* = default, pins jumpered
Table B-6 6020 EZ I/O base address selection
IA:
W2[7-8] IB:
W1[9-10] J1: EZ I/O 1
address
J7: EZ I/O 2
address
CTC:
I/O address Gate address
& bit
not
jumpered
not
jumpered
320H 328H 330H 0xA8, bit 4
jumpered not
jumpered
120H 128H 130H 0xA8, bit 4
not
jumpered
jumpered 340H 348H 350H 0xA8, bit 4
jumpered* jumpered* 140H* 148H* 150H* 0xA8, bit 4
* = default, pins jumpered
Table B-7 6020 pull-down/pull-up EZ I/O 1 configuration: W3
Configuration Description
W3[2-4] All lines in Port A are pulled to Gnd through 10K Ohm
W3[4-6]* All lines in Port A are pulled to +5V through 10K Ohm
W3[7-9] All lines in Port B are pulled to Gnd through 10K Ohm
W3[7-8]* All lines in Port B are pulled to +5V through 10K Ohm
W3[1-3] All lines in Port C are pulled to Gnd through 10K Ohm
W3[3-5]* All lines in Port C are pulled to +5V through 10K Ohm
* = default, pins jumpered