CompactPCI Boards NEW! AcPC48x Counter/Timer with Quadrature ■AcPC482: Ten 16-bit counters – TTL ■AcPC483: Four 16-bit counters – TTL, and Four 32-bit counters – RS422 ■AcPC484: Six 32-bit counters – RS422 These modules are very flexible and available in several varieties to accommodate a broad range of counter/timer applications. Several models with a variety of configurations provide up to ten counter/timer channels for counting events, CompactPCI bus Compliance Specifications Meets PCI spec. V2.2 and PICMG 2.0, R3.0. generating waveform control signals, measuring pulse- Counter/Timers Data transfer bus: Slave with 32-bit, 16-bit, and 8-bit data widths, periodic rates, or quadrature position and Counter/timer configuration: transfer operation. monitoring operations. AcPC482: Ten 16-bit counters – TTL Interrupts (INTA#): Interrupt A is used to request an interrupt. AcPC483: Four 16-bit counters – TTL Support for internal or external triggering simplifies the Four 32-bit counters – RS422 Plug-and-Play: The system maps the base address into the synchronization of operations to specific events. Counter AcPC484: Six 32-bit counters – RS422 PCI bus 32-bit memory space. functions can use internally generated clocks or an Other I/O mixes can be made available as specials. Environmental externally supplied clock. Clock frequency: 20MHz. Operating temperature: Field I/O: Front panel SCSI-3 connector. 0 to 70°C or -40 to 85°C (E versions) Features Speed (with 20MHz internal clock): Storage temperature: -55 to 125°C. ■Ten 16-bit counter/timers (AcPC482 only) or Maximum output pulse/square wave freq.: 200nS. Relative humidity: 5 to 95% non-condensing. Minimum event pulse width: 100nS. six 32-bit counter/timers (AcPC484 only) Minimum pulse width measurement: 100nS. Power: 320mA at +5V, typical. ■Two 16-bit counters can be combined to create one Minimum period measurement: 200nS. MTBF: Hours at 25°C, MIL-HDBK-217F, notice 2 32-bit counter Mode accuracy (with external clocking): AcPC482 1,744,259; AcPC483 1,727,707; Waveform generation: Period is ±125nS. AcPC484 1,708,729 ■Available with both TTL and RS422 driver interface Watchdog: Timeout occurs within ±1 clock cycle. (AcPC483 only) Pulse/period measurement: ±1 clock cycle. Ordering Information Internal clocks: Programmable 1.25, 2.5, 5, 10 or 20MHz via ■16 bi-directional digital I/O CompactPCI Boards the counter control register. AcPC482: Ten 16-bit counters – TTL ■20MHz clock time base External clocks: Supported on a per-counter basis via clock AcPC482E: AcPC482 with extended temperature range line. Maximum frequency 8MHz. ■Counter/timer functions: AcPC483: Four 16-bit counters – TTL, Interrupts: Supported for watchdog timer time-out, event - Quadrature position measurement Four 32-bit counters – RS422 count complete, pulse width or periodic rate measurement - Pulse width modulation complete, pulse wave complete (one-shot mode), succes- AcPC483E: AcPC483 with extended temperature range - Watchdog timer sive waveform generation (continuous). AcPC484: Six 32-bit counters – RS422 - Event counting Triggering/gate: Programmable via register write or external AcPC484E: AcPC484 with extended temperature range trigger. Minimum pulse width 100nS. Line may be used - Frequency measurement for gating of counter. - Period/pulse-width measurement Software (see Page 81) ® Counter trigger: Interface for triggering counter func- PMCSW-API-VXW: VxWorks software support package - One-shot/repetitive tions. Input level is TTL or RS422 differential digital. ® PCISW-API-QNX: QNX software support package ■Extended temperature option (-40 to 85°C) Counter input: Interface for events and pulse/period measure- ® PCISW-API-WIN: Windows DLL software support ments. Also triggers load of watchdog timer register. Level is TTL or RS422 differential digital. Benefits Accessories (see Page 87) TTL compatibility: V = 2.0V and V = 0.8V. Inputs are 5025-288: Termination panel, SCSI-3 connector,■Most configuration is handled by a single IH IL buffered and include 4.7K ohm pull-ups to +5V. 68 screw terminals register which minimizes programming. Counter output: Level is TTL or RS422 differential digital. 5028-432: Cable, shielded, SCSI-3 connector both ends ■Pullups are socketed for easy adjustment. Digital I/O I/O channel configuration: 16 bi-directional TTL transceivers. Direction controlled as 16 independent channels. Acromag, Inc.  PO Box 437, Wixom, MI 48393  Phone: 248-624-1541  Fax: 248-624-9234  solutions@acromag.com  www.acromag.com 76 CompactPCI Boards