UBC B2

UART BLOCK Card, Abaco® I/O BUS, 2 lines

UBC B2 English Tech. Manual PDF format.

Ver.5.10 - Rel. 14 October 2002

UBC A2 board is a powerful module designed for ABACO® I/O BUS serial communications featuring remarkable possibilities of interfacement to several external devices.

The board is based on the flexible Zilog SCC 85c30, which can support asynchronous communication and even, without external devices, well developed protocols like HDLC and SDLC.

The UBC A2 board comes in 100x80mm format, it manages separetely 2 serial lines whose protocols and communication speeds are software settable; each of the 2 lines manage in autonomy the 4 canonical signals: TxD, RxD, CTS, RTS. In addition, each communication line can be buffered as RS 232, RS 422, RS 485 or CURRENT LOOP. At last, 3 of these signals are monitored separately for the 2 serial lines through LEDs.

The asynchronous communication can be made employing one of the following communication protocols:

• - Baud rate selectable amongst 150 and 115.2 KBaud
• - Stop bit selectable amongst 1; 1.5 and 2 bits
• - Word length selectable from 5 to 8 bits
• - Parity can be even, odd or none

A software readable 4-pins Dip Switch allows the User to set on the board particular conditions to inform the firmware about a particular situation (for example; a certain Baud Rate and communication protocol have been chosen).

UBC A2 board takes 4 bytes of addressing space where all the registers that allow software management and programming of the board are allocated.

Theseddresses can be allocated in the ABACO® I/O BUS addressing space through a 6 pins Dip Switch.

The board is capable to generate an interrupt signal when specific software settable events occour.

• - Peripheral module for ABACO® I/O BUS.
• - 100x80mm format, with four holes for mechanical mounting.
• - SCC Z85c30 with 11.0592 MHz oscillator, which is capable to manage HDLC, SDLC, etc. protocols; protocol and Baud Rate, up to 115 KBaud, are software settable.
• - 4 pins Dip Switch software readable.
• - 2 serial lines bufferable as RS 232, RS 422, RS 485 or Current Loop.
• - 6 LEDs, installed on the front, to visualizethe status of TX, RX and RTS signals.
• - Possibility to generate an interrupt signal to connetct to /INT or /NMI BUS signals.
• - ABACO® I/O BUS addressing space as low as 4 bytes only.
• - 6 pins Dip Switch for I/O address setting.
• - Unique 5Vdc power supply, 45mA current consumption (basic configuration).

Data Sheet UBC B2, Rel. 00.02

GRIFO®
Via dell'Artigiano, 8/6
40016 San Giorgio di Piano
Bologna ITALIA

Tel: +39 051 89.20.52 (4 linee r. a.)
FAX: +39 051 89.36.61

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