enCoRe™ V CY7C643xx, enCoRe™ V LV CY7C604xx TRM, Document No. 001-32519 Rev *H
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K
keeper
A circuit that holds a signal to the last driven value, even when the signal becomes un-driven.
L
latency
The time or delay that it takes for a signal to pass-through a given circuit or network.
least significant bit
(LSb)
The binary digit, or bit, in a binary number that represents the least significant value (typically the
right-hand bit). The bit versus byte distinction is made by using a lower case “b” for bit in LSb.
least significant byte
(LSB)
The byte in a multi-byte word that represents the least significant value (typically the right-hand
byte). The byte versus bit distinction is made by using an upper case “B” for byte in LSB.
load
The electrical demand of a process expressed as power (watts), current (amps), or resistance
(ohms).
logic function
A mathematical function that performs a digital operation on digital data and returns a digital
value.
low time
The amount of time the signal has a value of ‘0’ in one period, for a periodic digital signal.
low-voltage detect
(LVD)
A circuit that senses Vdd and provides an interrupt to the system when Vdd falls below a
selected threshold.
M
M8C
An 8-bit Harvard Architecture microprocessor. The microprocessor coordinates all activity inside
the enCoRe V device by interfacing to the flash, SRAM, and register space.
macro
A programming language macro is an abstraction whereby a certain textual pattern is replaced
according to a defined set of rules. The interpreter or compiler automatically replaces the macro
instance with the macro contents when an instance of the macro is encountered. Therefore, if a
macro is used 5 times and the macro definition required 10 bytes of code space, 50 bytes of
code space are needed in total.
mask
1. To obscure, hide, or otherwise prevent information from being derived from a signal. It is usu-
ally the result of interaction with another signal, such as noise, static, jamming, or other forms
of interference.
2. A pattern of bits that can be used to retain or suppress segments of another pattern of bits in
computing and data processing systems.
