XVME-110  EEPROM Memory Module

The Xycom Automation XVME-400 and XVME-401 Quad Serial I/O Modules are single-high, single-wide
VMEbus modules that provide a VMEbus system with four serial communication channels. The XVME-400
and XVME-401 differ only in their communication interface: the XVME-400 provides four RS-232C serial
ports, while the XVME-401 provides four
RS-422A/RS-485 serial ports.
Both modules contain two Z8530 Serial Communication Controller (SCC) chips which provide a variety of
communication modes, including asynchronous, bytesynchronous, and bit-oriented protocols. Each channel
is independently programmable and has its own baud rate generator and modem signal controls.
The VMEbus interface directly maps the Z8530 SCC chips into the short I/O address space, starting on a
jumper-selected 1 Kbyte boundary. The modules can also be jumpered to generate an interrupt on any of the
seven VMEbus interrupt levels. The two Z8530 SCC chips can generate a total of 16 different interrupt vectors.

XVME-110

For applications not allowing I/O to be routed out the front panel, the XVME-490 and XVME-491 offer the
same functionality as the XVME-400 and XVME-401. In a 6U form factor, the I/O is routed via the VMEbus P2 connector on the back of the board.

Features
• Four serial ports
• Single (3U) size (XVME-400/401) or double (6U) size (XVME-490/491)
• Asynchronous, monosynchronous, bisynchronous, HDLC, SDLC operation
• Zilog Z8530 Serial Communication Controller
• Modem control
• RS-232C or RS-422A/RS-485-compatible
• Independent baud rate generators for each signal channe