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LS7566

器件名称: LS7566
功能描述: 24-BIT FOUR-AXES QUADRATURE COUNTER
文件大小: 87.35KB    共13页
生产厂商: LSI
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简  介:UL LSI/CSI LSI Computer Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 RS2 RS1 RS0 CHS1 CHS0 NC NC RD/ CS/ LS7566 (631) 271-0400 FAX (631) 271-0405 July 2005 A3800 24-BIT FOUR-AXES QUADRATURE COUNTER FEATURES: Read/write registers for count and I/O modes. Count modes include: Non-quadrature (Up/Down), Quadrature (x1, x2, x4), Free-run, Non-recycle, Modulo-n and Range limit Separate mode-control registers for each axis Interrupt output and interrupt mask register. 40 MHz count frequency, 5V 20 MHz count frequency, 3V Sets of 24-bit counters, preset registers, comparators and output latches and 8-bit status registers for each axis Digital filtering of the input quadrature clocks for noise immunity. 3-state Octal I/O bus 3V to 5.5V operating voltage range LS7566-TS (TSSOP) -See Figure 1GENERAL DESCRIPTION: The LS7566 consists of four identical modules of 24-bit programmable counters with direct interface to incremental encoders. The modules can be configured to operate as quadratureclock counters or non-quadrature up/down counters. In both quadrature and non-quadrature modes, the modules can be further configured into free-running, non-recycle, modulo-n and range-limit count modes. The mode configuration is made through two 8-bit read/write addressable control registers, MDR0 and MDR1. Data can be ported to a 24-bit preset register PR, organized in directly addressable (write-only) byte0 [PR0] byte1 [PR1] and byte2 [PR2] segments. PR can be transferred to……
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