Delta Tau PMAC2 Uživatelský manuál stáhnout pdf (Strana 13)

Turbo PMAC2 VME Hardware Reference

Bottom Board E-Point Jumper Descriptions 9

E20A-I: DPRAM Byte Order Control

E Point and

Physical Layout

Location Description Default

E20A-I

5 (4 3) (2 1)

Jump pins 1 to 2 and pins 3 to 4, to tie DPRAM data

lines 8-15 to VMEbus data lines 8-15, and DPRAM

data lines 0-7 to VMEbus data lines 0-7 (Motorola

big-endian format).

Jump pins 2 to 3 and pins 4 to 5 to tie DPRAM data

lines 8-15 to VMEbus data lines 0-7, and DPRAM

data lines 0-7 to VMEbus data lines 8-15 (Intel little-

endian format).

1-2, 3-4 Jumpers

installed (Motorola

format)

All E20A-I jumpers must be in the same setting for DPRAM communications to work.

E39: Reset-from-Bus Enable

E Point and

Physical Layout

Location Description Default

E39

B5 Jump pin 1 to 2 to permit VMEbus reset line to reset

PMAC2.

Remove jumper so VMEbus reset line does not reset

PMAC2.

1-2 Jumper installed

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 40 41

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Delta Tau PMAC2 Uživatelský manuál Strana 13