EMAC MicroPac 535, Справочник по аппаратуре

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INTRODUCTION
The 80535 processor used in the MicroPac 535 has many features, with some requiring trading of one function for another. The MicroPac
535 features are as follows:
SERIAL PORTS: Three serial ports may be individually configured for RS-232 or RS-422, at standard rates up to
230.4K baud, and each have multiprocessor communication capability using 9 bit protocol.
KEYPAD INTERFACE: Decodes up to 20 keys, which can generate an interrupt when pressed.
LCD INTERFACE: Connects to a wide variety of character LCD displays, with backlight control capability.
8 CHANNELS OF A/D: Directly supplies 8 bits of resolution with user programmable internal reference voltages. These
programmable references allow you to generate 10 bit resolution through software.
4 CHANNELS OF D/A This Digital to Analog convertor provides 4 channels of 8 bit resolution in the range of 0 to 5V.
24 BITS OF DIGITAL I/O: There are 3 input lines, 3 output lines and 18 lines programmable as either inputs or outputs.
Factory options allow conversion of one 8 bit bit port to TTL level or high current outputs.
4 PWM I/O PORTS: These ports may be configured to output or decode Pulse Width Modulated signals.
10 EXTERNAL INTERRUPTS: Each have various levels of programability. Some allow you to program the priority and some may
be programmed to be level or edge triggered.
4 COUNTER/TIMERS: In counter mode timers 0,1 and 2 may receive signals of up to 1/24 of the oscillator frequency. In
timer mode, they are driven by 1/12 of the oscillator frequency (timer 2 may optionally be driven by
1/24) Each are 16 bit counter/timers.
WATCHDOG TIMER: When enabled, it will automatically reset the processor in the event of a hardware or software
failure.