Hardware Considerations
DSX™ System Service Manual 14-3
14.3 Hardware Considerations
14.3.1 Motor Drivers
The motor drivers are the A2919, and set for 0.5 amps with a software boost, and driven in
half steps.
14.3.2 Voltage Generation and Regulation
1 The Vcc is for the Control and driver board utilize a Newport Power NMA 2405S
that provides +/5v for a total of 2 Watts.
2 The Vcc for the Transition board is derived from a Newport Power NME 2405S
which provides 1 Watt @ +5v.
14.3.3 Microcomputer
1 The Hitachi H8/3337F single-chip microcomputer provides 60Kbytes of Flash
ROM and 2Kbytes of RAM at a frequency of 16 MHz. The H8/3337F has the
following internal peripheral capabilities:
2 9 ports, providing 58 I/O and 8 Input lines
3 Two 8-bit timers (TMR0, TMR1)
4 One 16-bit free-running counter (FRC)
5 Two digital to analog channels (DA0, DA1), with 8-bit resolution
6 Eight analog to digital channels (AN0 through AN7), with 10-bit resolution
7 Two serial communications channels (COM0, COM1)
8 Two pulse width modulation channels (PWM0, PWM1)
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