C&H Technologies M222 - Manual (Page 13)

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3.0 FUNCTIONAL DESCRIPTION
3.1 OVERVIEW
A simplified switching schematic is shown in Figure 2.
CGND: Pin 14, 15, 30, 37, 44
No Connec tion: Pin 7, 19, 26
NC = Normally Closed
NO = Norm ally Open
c om = Comm on
Figure 2. Switching Schematic
3.1.1 M-Module Interface
An M-Module interface allows communication between the M222 and the carrier module. The
interface is an asynchronous 16-bit data bus with interrupt capabilities. The interface adheres to
the ANSI/VITA 12-1996 Standard for The Mezzanine Concept M-Module Specification for MA
modules.
3.1.2 ID EEPROM
An EEPROM holds sixty-four 16-bit words of M-Module ID data and VXI M-Module data.
Refer Section 3.2.2 for more details.
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