PMC Modules PMC48x Counter/Timer with Quadrature ■PMC482: Ten 16-bit counters – TTL ■PMC483: Four 16-bit counters – TTL, and Four 32-bit counters – RS422 ■PMC484: 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, 32-bit PCI Target: Implemented by Altera FPGA. Specifications generating waveform control signals, measuring pulse- 4K Memory Space Required: One Base Address Register. Counter/Timers widths or periodic rates, measuring quadrature position, Signaling: 5V Compliant, 3.3V Tolerant. Counter/timer configuration: and monitoring operations. PMC482: Ten 16-bit TTL counters Interrupts (INTA#): Interrupt A is used to request an interrupt. PMC483: Four 16-bit TTL counters,four 32-bit RS422 counters Register Access Times: 8 PCI clock cycles, typical. Support for internal or external triggering simplifies the PMC484: Six 32-bit RS422 counters synchronization of operations to specific events. Counter Other I/O mixes can be made available as specials. Environmental functions can use internally generated clocks or an Operating temp.: 0 to 70°C or -40 to 85°C (E versions) Clock frequency: 20MHz. externally supplied clock. Storage temperature: -55 to 105°C. Field I/O: Front panel SCSI-3 connector. Relative humidity: 5 to 95% non-condensing. Speed (with 20MHz internal clock): Features Maximum output pulse/square wave freq.: 200nS. Power: Consult factory. ■Ten 16-bit counter/timers (PMC482 only) or Minimum event pulse width: 100nS. MTBF: Hours at 25°C, MIL-HDBK-217F, notice 2 Minimum pulse width measurement: 100nS. six 32-bit counter/timers (PMC484 only) PMC482 1,744,259; PMC483 1,727,707; PMC484 1,708,729 Minimum period measurement: 200nS. ■Two 16-bit counters can be combined to create one Mode accuracy (with external clocking): Ordering Information 32-bit counter Waveform generation: Period is ±62nS. Watchdog: Timeout occurs within ±1 clock cycle. PMC Modules ■Available with both TTL and RS422 Pulse/period measurement: ±1 clock cycle. PMC482: Ten 16-bit TTL counters driver interface (PMC483 only) Internal clocks: Programmable 1.25, 2.5, 5, 10 or 20MHz via PMC482E: Same as PMC482 plus extended temp.range the counter control register. ■16 bi-directional digital I/O PMC482R: Same as PMC482 with rear I/O connector External clocks: Supported on a per-counter basis via clock PMC482RE: Same as PMC482E with rear I/O connector■20MHz clock time base line. Maximum frequency 8MHz. PMC483: Four 16-bit TTL counters,Four 32-bit RS422 counters Interrupts: Supported for watchdog timer time-out, event ■Single counter/timer modes: count complete, pulse width or periodic rate measurement PMC483E: Same as PMC483 plus extended temp.range - Event counting complete, pulse wave complete (one-shot mode), succes- PMC483R: Same as PMC483 with rear I/O connector - Frequency measurement sive waveform generation (continuous). PMC483RE: Same as PMC483E with rear I/O connector - Period/pulse-width measurement Triggering/gate: Programmable via register write or external PMC484: Six 32-bit RS422 counters - Quadrature position measurement trigger. Minimum pulse width 100nS. Line may be used PMC484E: Same as PMC484 plus extended temp.range for gating of counter. - Square wave/pulse train generation PMC484R: Same as PMC484 with rear I/O connector - Time/period interrupter Counter trigger: Interface for triggering counter func- tions. Input level is TTL or RS422 differential digital. - 32-bit counter/timer PMC484RE: Same as PMC484E with rear I/O connector Counter input: Interface for events and pulse/period measure- - Pulse width generation Software (see Page 81) ments. Also triggers load of watchdog timer register. Level ® PMCSW-API-VXW: VxWorks software support package■Extended temperature option (-40 to 85°C) is TTL or RS422 differential digital. ® PCISW-API-QNX: QNX software support package TTL compatibility: V = 2.0V and V = 0.8V. inputs are IH IL ® buffered and include 4.7K pull-ups to +5V. PCISW-API-WIN: Windows DLL software support Benefits Counter output: Level is TTL or RS422 differential digital.■Most configuration is handled by a single Accessories (see Page 87) register which minimizes programming. 5025-288: Termination panel, SCSI-3 connector, PMC Compliance 68 screw terminals Conforms to PCI Local Bus Specification, Revision 2.2 and■Pullups are socketed for easy adjustment. CMC/PMC Specification, P1386.1. 5028-432: Cable, shielded, SCSI-3 connector both ends Electrical/Mechanical Interface: Single-Width Module. Acromag, Inc.  PO Box 437, Wixom, MI 48393  Phone: 248-624-1541  Fax: 248-624-9234  solutions@acromag.com  www.acromag.com 50 PMC Modules