AP482: Ten 32-bit Counter/Timer Modules
• TTL I/O
• PCI Express bus interface
Support for internal or external triggering simplifies the synchronization of operations to specific events.
Designed for COTS applications these general purpose I/O modules deliver high-speed and high resolution TTL communication.
AcroPack modules are RoHS compliant and ideal for military, defense, automation, aerospace, scientific, and development labs industries.
The AP482 module is 70mm long, this is 19.05mm longer than the full-length mini-PCIe card at 50.95mm. The board's width is the same as mPCIe board of 30mm and they use the same mPCIe standard board hold down standoff and screw keep out areas.
A down facing 100 pin Samtec connector will mate with the carrier card. Fifty of these signals are available as field I/O signals.
The AP482 maintains the same functionality and memory map of the existing Industry Pack modules providing a smooth transition to the AcroPack I/O modules.
Counter/timer configuration: AP482: Ten 32-bit counters – TTL I/O
Counter Input: Each counter has an InA, InB, and InC input port. These TTL or RS485 input ports are used to control Start/Stop, Reload, Event Input, External Clock, Trigger, and Up/Down operations.
Clock frequency: Selectable internal clock frequencies: 1.95MHz, 3.9MHz, 7.81MHz, 15.62MHz, or 62.5MHz.
Minimum input event: 32nS.
Minimum pulse measurement: 32nS.
Minimum period measurement: 64nS.
Minimum gate/trigger pulse: 32nS.
Interrupts: Supported for watchdog timer time-out, event count complete, pulse width or periodic rate measurement complete, pulse wave complete (one-shot mode), successive waveform generation (continuous).
Triggering/gate: Programmable via register write or external trigger. Minimum pulse width 32nS. Line may be used for gating of counter.
Counter trigger: Interface for triggering counter functions. Input level is TTL digital.
Counter input: Interface for events and pulse/period measurements.Also triggers load of watchdog timer register. Level is TTL digital.
TTL compatibility: VIH = 2.0V and VIL = 0.8V. inputs are buffered and include 4.7K pull-ups to +3.3V.
Counter output: Each counter has an output port. These TTL or RS485 output ports are used for waveform output, watchdog active indicator, or 1.73 μs pulse upon counter function completion. Counter output is programmable as active high or low.
PCI Express Base Specification
Conforms to revision 2.1
Lanes: 1 lane in each direction
Bus Speed: 2.5 Gbps (Generation 1).
Memory: 4k space required 1 base address register.
Operating temperature: -40 to 70°C; -40 to 85°C (requires an AcroPack heatsink conduction-cool kit).
Storage temperature: -55 to 150°C.
Relative humidity: 5 to 95% non-condensing.
Power: 3.3V DC ± 5%; 1.6A typical, 2.0A maxium.
Note: AcroPack modules are compatible only with the carriers listed in the accessory section of this page.
Features & Benefits
• PCI Express Generation 1 interface
• Ten 32-bit counter/timers
• Mix and match countless I/O combinations in a single slot.
• Sample software and diagnostics
• 62.5MHz clock time base
• Single counter/timer modes:
- Event counting
- Frequency measurement
- Period/pulse-width measurement
- Quadrature position measurement
- Square wave/pulse train generation
- Time/period interrupter
- Pulse width generation
• Most configuration is handled by a single register which minimizes programming.
• Solid-down connector I/O interface
• Wide temperature range
• VPX and PCIe carriers
• Linux®, Windows®, and VxWorks® support