Delta Tau Universal PMAC Lite, Hardware Reference Manual

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Universal PMAC Lite
PMAC Lite E-Point Descriptions 27
E66 - E71: Bus Base Hardware Address (Low Bits)
E Point and Physical Layout Location Description Default
E66 E67 E68 E69 E70 E71 D3 E66 - Bit 9 PC bus base address
E67 - Bit 8 PC bus base address
E68 - Bit 7 PC bus base address
E69 - Bit 6 PC bus base address
E70 - Bit 5 PC bus base address
E71 - Bit 4 PC bus base address
ON = 0; OFF = 1 for calculating
bus address
E67-E70 installed
These jumpers work with E91 and E92 to set the base address of PMAC Lite on the PC bus. See PMAC Lite
Jumpers Summary section for details on how to set these jumpers.
E72 - E73: Panel Analog Time Base Signal Enable
E Point and
Physical Layout
Location Description Default
E72
E2 Jump pin 1 to 2 to allow V to F converter
FOUT derived from Wiper input on J2 to
connect to CHA4. No jumper installed
E73
E2 Jump pin 1 to 2 to allow V to F converter
sign out derived from Wiper input on J2 to
connect to CHB4. No jumper installed
Note : With these jumpers ON, no encoder should be wired into ENC4 on JMACH1. E27 must connect pins 1
to 2 because these are single-ended inputs. Variable I915 should be set to 4 to create a positive voltage
(frequency) number in PMAC.
E74 - E75: Clock Output Control for Ext. Interpolation
E Point and
Physical Layout
Location Description Default
E74 E2
Jump pin 1 to 2 to allow SCLK/ to output
on CHC4/. No jumper installed
E75
E2 Jump pin 1 to 2 to allow SCLK to output
on CHC4. No jumper installed
Note : SCLK out permits synchronous latching of analog encoder interpolators such as Acc-8D Opt 8.