Here, the enable signal may be active high (top, 1 to enable the buffer) or active low (bottom, 0 to enable the buffer). Sign in to download full-size image Figure 6.59. Tristate buffer symbol The tristate buffer can be created in VHDL using the If-then-else statement, as shown ...
A tri-state controlled video switch includes three switch transistors, each being coupled to a common output line and each being supplied with a different video input signal. A microprocessor controls the voltage condition on a control line. In response to a high, low or open voltage condition ...
(g is not already marked active during p) { if(g is a latch whose enable is a constant 0 during phase p ∥ g is a tristate Buffer whose enable is a constant 0 during phase p) { do nothing } else { let m be the output node of g mark g as active during phase p call find-...
Their tri-state outputs can drive bus lines, buffer memory-address registers, or interface to wide data paths and buses carrying parity. The list of ... B Tuck 被引量: 0发表: 1987年 simultaneous reading of the status register efficiently read from a plurality of parallel memory devices shari...
The output action can be configured to either hold an output in its current state, to clear the output, to set the output, or to toggle the output. The output actions generated by events in a given LTC can be passed to downstream LTC's, thereby allowing a single physical output to be...
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