JT 2111/MPV DIOS Module

The JT 2111/MPV (multi-purpose, multi-voltage) DIOS module is encased in a plastic housing for desk use and provides 64 bi-directional I/Os, each accessible via boundary-scan. By driving and sensing I/O logic values, the structural integrity of edge and on-board connectors and logic clusters can be verified.

Additional JT 2111/MPV modules can be connected serially to increase the number of parallel access points for testing and/or in-system programming. Two versions of the module are available:

• JT 2111/MPV - DIN Equipped with a single 96-pin DIN connector
• JT 2111/MPV - IDC Equipped with four 20-pin IDC connectors

The five TAP signals (TDI, TDO, TMS, TCK and TRST*) are implemented on two separate 10-pin connectors, one for TAP-in and the other for TAP-out which can be used to daisy-chain to another DIOS module or
scan chain on the target board.

The 64 I/Os are grouped in four segments of 16 pins. Each segment can be bypassed in order to shorten chain, thereby providing faster programming of flash devices.

The JT 2111/MPV derives its power from an AC adaptor. The input power supply voltage is hardware or software selectable at 1.5V, 1.8V, 2.5V or 3.3V. If 3.3V is selected, the voltage input is 5V tolerant.

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