PCI-6602  数字I/O模块  具有8个计数器/定时器

PCI-6601是一款高可靠性的定时和数字I/O模块。

PCI-6601具有20MHz最大源频率（使用预定标度可达60MHz），可执行1种同步高速DMA转换。

National Instruments PCI-6602 计数器/定时器设备

5 V，8通道计数器/定时器设备

PCI‑6602可执行编码器位置测量、事件计数、周期测量、脉冲宽度测量、脉冲生成、脉冲串生成和频率测量。 它具有八个计数器/定时器，数字去抖动滤波器和TTL/CMOS兼容的数字I/O。PCI‑6602可以同时执行三路高速DMA传输。

PCI-6602（部件号：777531-01、184479-01）计数器/定时器设备具有8个计数器/定时器、32个双向数字通道、最大源频率为80 MHz、5V、TTL逻辑电平和范围。该设备可用于生成多种类型的测量解决方案，例如使用正交编码器监控位置、对事件进行计数或累加，或测量与时间相关的量。NI PCI-6602 计数器 / 定 时 器 采用 NI- TIO， 这 是 一 款 NI ASIC 芯片， 可 满足 测量 应用 的 定 时 和 计数 要求， 而 高于 现 成 设备 的 功能。该设备配备了一个 68 针公头 SCSI-II 型 I/O 连接器。部件号 184479-01 是 PCI-6602 的纯板卡套件。

NI PCI-6602 的 几个 特性 包括： 去 抖 动 / 毛刺 消除、 缓冲 操作 和 脉冲 生成。此设备没有 GPS 同步。PCI 6602 National Instruments 可以进行校准。该器件的校准过程是时基校准，可确保时间和频率测量的精确性。

该器件具有衰减同步功能，当几个计数器正在估计或处理类似的外部信号时，该器件非常有用。例如，假设计数器 0 和 1 设计用于激活脉冲生成，并且每个计数器都使用类似的外部触发器（此外部标志与 I/O 连接器上的 PFI 38 相关联，并且两个计数器选择 PFI 38 作为其 GATE）。在触发信号通过I/O焊盘激增后，信号达到ASIC内部每个计数器的GATE的理想机会可能会相差几纳秒。

PCI-6602  数字I/O模块  具有8个计数器/定时器

The PCI-6601 is a highly reliable timing and digital I/O module.

The PCI-6601 has a maximum source frequency of 20MHz (up to 60MHz using a predetermined scale) and can perform a synchronous high-speed DMA conversion.

National Instruments PCI-6602 Counter/timer equipment

5 V, 8 channel counter/timer device

PCI‑6602 performs encoder position measurement, event counting, period measurement, pulse width measurement, pulse generation, pulse train generation, and frequency measurement. It features eight counters/timers, digital dejitter filters, and TTL/ CMOS-compatible digital I/O. PCI‑6602 can perform three high-speed DMA transmissions simultaneously.

The PCI-6602 (Part number: 777531-01, 184479-01) counter/timer device has 8 counters/timers, 32 bidirectional digital channels, a maximum source frequency of 80 MHz, 5V, TTL logic level, and range. The device can be used to generate many types of measurement solutions, such as monitoring positions with orthogonal encoders, counting or adding up events, or measuring time-dependent quantities. The NI PCI-6602 counter/timer uses Ni-TIO, an NI ASIC chip that meets the timing and counting requirements of measurement applications, beyond the capabilities of existing devices. The device is equipped with a 68-pin male SCSI-II Type I/O connector. Part number 184479-01 is a pure board kit for PCI-6602.

Several features of NI PCI-6602 include: debuffering/burr elimination, buffering operation, and pulse generation. This device has no GPS sync. The PCI 6602 National Instruments can be calibrated. The calibration process for this device is time base calibration, which ensures accurate time and frequency measurements.

The device has attenuation synchronization, which is useful when several counters are estimating or processing similar external signals. For example, suppose the counters 0 and 1 are designed to activate pulse generation, and each counter uses a similar external trigger (in addition, the part flag is associated with PFI 38 on the I/O connector, and both counters select PFI 38 as their GATE). After the trigger signal surges through the I/O pad, the ideal chance of the signal reaching the GATE of each counter inside the ASIC may vary by a few nanoseconds.