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MaxLoader User’s Guide
115
HEX file A human-readable ASCII file that represents any binary data. Each byte in
the binary pattern is represented by two HEX characters (0-9, A-F) so that
any of the 256 possible bytes, which include both control and unprintable
characters, may be printed. The HEX file may also contain address or
checksum information. The pattern represented by the HEX file may be
represented by a binary file or any of the HEX file formats – any file format
may contain any pattern. The names of the HEX file formats (Intel, Motorola,
Tektronix, etc.) indicate who standardized its format and does not indicate
anything about the pattern or the device the pattern is intended for.
I/O Input/ Output.
JEDEC Joint Electron Device Engineering Council (pronounced JED’eck). A group
organized by the IEEE (Institute of Electrical and Electronics Engineers) that
has defined a standard file format for PLDs.
JEDEC file A file conforming to a standard format that specifies the configuration and
testing procedure for a PLD. The file is in a human-readable ASCII format
and consists of fields that start with a letter and end with an asterisk. Fields
specify the pattern to program into the part, whether to secure the device, a
set of test vectors to perform a functional test, and checksums to verify the
integrity of the file.
LCC Leadless Chip Carrier. A square ceramic package that has no leads; Instead it
has metal areas that are surface-mount soldered to the target circuit. This
package is usually used only for military and aerospace applications.
Available up to 84 pins.
Memory device A Device that contains an array of storage locations. The device has a set of
inputs, called address, which specify which location in the array is being
accessed. A set of input/output pins produce the stored number (pattern)
when the device is read, and accept a new value when the device is written or
programmed. Additionally, there are one or more input pins that select the
operating move (read, write, standby, etc.). Memory devices may be
classified by whether they are volatile or nonvolatile, and whether they may