User manual

Accessory 24E2
HARDWARE SETUP
Position Compare Port Driver IC
As with the other PMAC controllers, the UMAC has the high speed compare outputs which allows firing
an output based on position. This circuit will fire within 100 nsec of reaching the desired position. The
position compare output port on the ACC-24E2 and its Option 1 daughter card has a socketed driver IC in
a 8-pin DIP socket at component U27. This IC gives a fast CMOS driver.
The following table lists the properties of each driver IC:
Part # of
Pins
Max Voltage &
Current
Output Type Max
Frequency
E11, E12
Setting
DS75451N 8 5V, 10 mA Totem-Pole
(CMOS)
5 MHz 1-2
Switch Configuration
UMAC Address DIP Switch S1
S1, S1-3, S1-4 are used to address the ACC-24E2 as shown in the table below.
S1-1 S1-3 S1-4 Board No. IC No. I-Var. Range Base Address
ON ON ON 1 2 I7200 $078200
OFF ON ON 2 3 I7300 $078300
ON OFF ON 3 4 I7400 $079200
OFF OFF ON 4 5 I7500 $079300
ON ON OFF 5 6 I7600 $07A200
OFF ON OFF 6 7 I7700 $07A300
ON OFF OFF 7 8 I7800 $07B200
OFF OFF OFF 8 9 I7900 $07B300
S1-2, S1-5, and S1-6 are used to determine whether the ACC-24E2 is communicating to a Turbo 3U
PMAC or a MACRO Station CPU.
S1-2 S1-5 S1-6 Function
ON ON ON 3U Turbo PMAC Use
MACRO Station Address DIP Switch S1
S1-1, S1-2, S1-3, S1-4 are used to address the ACC-24E2 as shown in the table below.
S1-1 S1-2* S1-3 S1-4 Board No. IC No. Base Address
ON ON OFF OFF 1 2 $00C040
OFF OFF OFF OFF 2 3 $00C060
* Always set to OFF for legacy MACRO Stations (part number 602804-100 through 602804-104)
S1-5 and S1-6 are used to determine whether the ACC-24E2 is communicating to a Turbo 3U PMAC or a
MACRO Station CPU.
S1-5 S1-6 Function
OFF OFF 3U MACRO Station use
Hardware Setup 5