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ROM16X1

16-Deep by 1-Wide ROM

XC3000
XC4000E
XC4000X
XC5200
XC9000
Spartan
SpartanXL
Virtex
N/A
Primitive
Primitive
N/A
N/A
Primitive
Primitive
N/A

figures/x4137n.gif

ROM16X1 is a 16-word by 1-bit read-only memory. The data output (O) reflects the word selected by the 4-bit address (A3 - A0). The ROM is initialized to a known value during configuration with the INIT=value parameter. The value consists of four hexadecimal digits that are written into the ROM from the most-significant digit A=FH to the least-significant digit A=0H. For example, the INIT=10A7 parameter produces the data stream

0001 0000 1010 0111

An error occurs if the INIT=value is not specified. Refer to the appropriate CAE tool interface user guide for details.

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