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The VME-2540 Intelligent Counter/Controller (ICC) is a VMEbus slave I/O module designed to provide high-precision digital measurement and function generation capability for VMEbus systems with a simple, consistent memory-mapped user interface.

・ RS-422 differential interface with support for single-ended TTL inputs ・ Options allow configurations of 4, 8, 16, and 24 interfaces ・ On-board 15 MHz 68HC000 CPU ・ A32/A24/D32/D16/D8 (EO) VME slave interface, 64 Kbyte VMEbus memory window ・ Timer/periodic VMEbus interrupter - 0.0076 to 1,000 Hz ・ Quadrature position measurement - sin/cos up to 1 MHz, 32-bit counters, limit/modulo checking Integer period/pulse-width measurement 16- and 32-bit, discrete or continuous; low data transport lags

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