S1K50000 Epson Electronics America, Inc., S1K50000 Datasheet - Page 37

• Manufacturer Part Number: S1K50000
• Description: Design Guide S1k50000 Series
• Manufacturer: Epson Electronics America, Inc.

Chapter 2: Precautions on Circuit Design
2.11.3 Limitations and Restrictions on VHDL Netlists
32
(13) In addition to the restrictions specified in (1), use of the following strings is also prohibited.
(14) The strings listed below are VHDL’s reserved words. Use of these strings as user-defined
(15) Before the Seiko Epson tools and utilities can be used, the VHDL format must be
INPUTA_
INPUT_ _A : The string has two consecutive underscores.
read
write
names is prohibited.
abs, access, after, alias, all, and, architecture, array, assert, attribute, begin, block,
body, buffer, bus, case, component, configuration, constant, disconnect, downto,
else, elsif, end, entity, exit, file, for, function, generate, generic, guarded, if, in, inout,
is, label, library, linkage, loop, map, mod, nand, new, next, nor, not, null, of, on,
open, or, others, out, package, port, procedure, process, range, record, register,
rem, report, return, select, severity, signal, subtype, then, to, transport, type, units,
until, use, variable, wait, when, while, with, xor
converted into Verilog format. For this reason, the Verilog reserved words specified in (12)
also cannot be used in VHDL.
: The string ends with an underscore '_'.
: Used by the system
: Used by the system
EPSON
STANDARD CELL S1K50000 SERIES
DESIGN GUIDE