enCoRe™ V CY7C643xx, enCoRe™ V LV CY7C604xx TRM, Document No. 001-32519 Rev *H
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serial
1. Pertaining to a process in which all events occur one after the other.
2. Pertaining to the sequential or consecutive occurrence of two or more related activities in a
single device or channel.
set
To force a bit/register to a value of logic 1.
settling time
The time it takes for an output signal or value to stabilize after the input has changed from one
value to another.
shift
The movement of each bit in a word, one position to either the left or right. For example, if the
hex value 0x24 is shifted one place to the left, it becomes 0x48. If the hex value 0x24 is shifted
one place to the right, it becomes 0x12.
shift register
A memory storage device that sequentially shifts a word either left or right to output a stream of
serial data.
sign bit
The most significant binary digit, or bit, of a signed binary number. If set to a logic 1, this bit rep-
resents a negative quantity.
signal
A detectable transmitted energy that can be used to carry information. As applied to electronics,
any transmitted electrical impulse.
silicon ID
A unique identifier of the enCoRe V silicon.
skew
The difference in arrival time of bits transmitted at the same time, in parallel transmission.
slave device
A device that allows another device to control the timing for data exchanges between two
devices. Or when devices are cascaded in width, the slave device is the one that allows another
device to control the timing of data exchanges between the cascaded devices and an external
interface. The controlling device is called the master device.
software
A set of computer programs, procedures, and associated documentation concerned with the
operation of a data processing system (for example, compilers, library routines, manuals, and
circuit diagrams). Software is often written first as source code and then converted to a binary
format that is specific to the device on which the code is executed.
software reset
A partial reset executed by software to bring part of the system back to a known state. A soft-
ware reset restores the M8C to a known state but not blocks, systems, peripherals, or registers.
For a software reset, the CPU registers (CPU_A, CPU_F, CPU_PC, CPU_SP, and CPU_X) are
set to 0x00. Therefore, code execution begins at flash address 0x0000.
SRAM
An acronym for static random access memory. A memory device allowing users to store and
retrieve data at a high rate of speed. The term static is used because, after a value is loaded into
an SRAM cell, it remains unchanged until it is explicitly altered or until power is removed from the
device.
SROM
An acronym for supervisory read-only memory. The SROM holds code that is used to boot the
device, calibrate circuitry, and perform flash operations. The functions of the SROM may be
accessed in normal user code, operating from flash.
stack
A stack is a data structure that works on the principle of Last In First Out (LIFO). This means that
the last item put on the stack is the first item that can be taken off.
stack pointer
A stack may be represented in a computer’s inside blocks of memory cells, with the bottom at a
fixed location and a variable stack pointer to the current top cell.
