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Version 3/4, September 1988 Version 5/6, May 1989 Hardware-Manual Edition September 1996 • • PHYTEC Meßtechnik GmbH Robert-Koch-Straße 39 D-55129 Mainz • Telefon: +49 (6131) 9221-0 Telefax: +49 (6131) 9221-33 • WWW: http://www.phytec.de E-Mail: info@phytec.de...
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It reserves the right to alter the information given in it without prior notification and accepts no responsibility for doing so. In addition, PHYTEC Messtechnik GmbH offers no guarantee nor accepts any liability for damages arising from the improper usage or improper installation of the hardware.
Contents First installation of the miniCON-535 .......... 3 Connection Terminals ..............5 2.1 The 9-pin D-Subminiature Connector of the serial interface ... 5 2.2 The connection strip X7 for the printer port........5 2.3 The connection strip X5 with /CE-signals........6 2.4 The pad-per-hole pattern area with processor signals ......
First Installation 1. First Installation of the miniCON-535 Surely you are eager to start with operations of the miniCON-535, before reading this manual. To do this successfully please observe the following hints. - You need an operable miniCON-535 with Monitor- or Moni- tor/Basic-EPROM and address-decoder.
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But in case of problems, use before the trouble shooting hints, found in chapter 15. The miniCON-535 offers the following features: * Universal Microcomputer on Standard Eurocard for Applications in...
Connection Terminals 2. Connection Terminals The miniCON-535 has the following connectors: - 9-pin D-subminiature connector P1 for the serial interface - 3-fold connecting strip X7 for the connection of a printer in the Basic-Mode - 5-fold connecting strip X5 with various /CE-signals...
Processorimportant Signals All important connections for extension-circuits on the pad-per-hole area of the miniCON-535 are provided by A..D/1..36. Please take the pin-assignment from the following table. The direction of counting corresponds to the orientation of the 96-pin DIN VG connector.
Jumper 3. Jumpers of the MC-535 The operating mode of the miniCON-535 is determined by a series of jumpers, which also consider the battery back-up and the selection of the memory. The jumpers are first described individually and then a typical configuration of the jumper-position is shown.
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1, which is not used by the miniCON-535. For EEPROMs with this option, JP5 should be not installed, other- wise the miniCON-535 will not be operating. Using a 32 KByte-RAM this jumper has to be bridged to A14. The installation with a 32 KByte-EPROM requires a jumper to VCC and a connection of A14 to the middle connection of JP4.
Memory of MC-535 4. The Memory of the MC-535 4.1 Memory Extension The miniCON-535 provides three 28-pin sockets U3, U4, and U5. The positions of the addresses depend on the address decoder. In section 4.2 several configurations are described for some standard decoders.
The PLDs allow a flexible address decoding, which easily can be adapted to customer request. The configuration with delivery of the miniCON-535, is adapted to the corresponding software. Modifica- tions of the address decoder due to changes of our software are pos- sible.
128 KByte. With the corresponding coding of the addresses, data- and program-memory can be considered as one physical unit. The miniCON-535 offers much flexibility concerning the application of EEPROMs or RAMs with battery back-up. For reasons of save...
In any case check if the interface of your terminal or computer is functioning. Short pin2 and pin3 of the cable, which should be con- nected to the miniCON-535 and observe if the echo of your key strokes is displayed at your PC/AT after starting the terminal program MONTERM.
9. Application of the Clock-Chip The Real-Time Clock operates with battery back-up independent from the functioning of the miniCON-535. The crystal oscillator is integrated in the chip. A tuning is not necessary. The clock has an interface of 4 bit for the connection to the bus of the processor. Ac- cording to our standard address decoding, it is placed in the region of the data memory.
11. The Battery Back-up Battery back-up with a Lithium battery (3V/120mAh) is not manda- tory for the operation of the miniCON-535. Using EEPROMs, battery back-up should be avoided anyway, if the /WE input of the EEPROM has not a high impedance. The RAM-socket of U4 is permanently connected with the supply voltage.
The following short description is only for completeness and refers only to the controller itself. This concept was not incorporated into the complete functioning of the miniCON-535. - The first difference between SAB80535 and 80C535 exists in the different bit assignment of the register PCON. By setting of two bits in two consequent machine instructions either the power-down- mode or the idle-mode of the controller is activated.
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Thereafter the controller resumes its normal operation. The power consumption of the controller in idle-mode depends on the activity of the internal peripherals. Note: The miniCON-535 was designed for the NMOS version of the 80535 and therefore doesn’t sup- port all possibiities for the reduction of power consumption in idle-mode.
Hints for Trouble Shooting 15. Hints for Trouble Shooting This section should help you to overcome problems and find real or supposed maloperation of the miniCON-535. 15.1 No functioning of the Serial Interface - Are all jumpers set correctly? Subject are all jumpers for EPROM and RAM-selection, and mode jumpers JP6 of the address decoder.
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