Claims
- 1. A memory configuration, comprising:a digital memory that includes: memory cells; at least one data line for writing data to said memory cells and for reading data from said memory cells; address lines for addressing said memory cells; and a switching unit having an active state in which said switching unit inverts a signal on a line selected from the group consisting of said data line and said address lines, said switching unit having an inactive state in which said switching unit leaves the signal unchanged, said active state and said inactive state defining states; said digital memory having a first operating mode, in which said switching unit is in the same one of said states for writing data to said memory cells and for reading data from said memory cells; and said digital memory having a second operating mode, in which said switching unit is in one of said states for writing data to said memory cells and is in another one of said states for reading data from said memory cells.
- 2. A method of operating a digital memory, which comprises:providing a digital memory with a first operating mode and a second operating mode; while in the first operating mode, writing data to the digital memory using a first address; while in the first operating mode, reading the data from the digital memory using the first address, the read data being in an unchanged logic state; while in a second operating mode, writing data to the digital memory using a second address; and while in the second operating mode, reading the data from the digital memory using the second address, the read data being in an inverted logic state.
- 3. The method according to claim 2, wherein:while in the first operating mode, when performing the step of writing the data and when performing the step of reading the data, the same memory cells are addressed; and while in the second operating mode, when performing the step of writing the data, different memory cells are addressed than the memory cells that are addressed when performing the step of reading the data.
- 4. The method according to claim 3, which comprises:writing data having a first logic state to a first memory area of the digital memory using an address associated with the first memory area; writing data having a second logic state to a second memory area of the digital memory; and while in the second operating mode, reading data from the second memory area using the address associated with the first memory area.
Priority Claims (1)
Number |
Date |
Country |
Kind |
197 42 597 |
Sep 1997 |
DE |
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CROSS-REFERENCE TO RELATED APPLICATION
This is a continuation of copending international application PCT/DE98/02156, filed Jul. 29, 1998, which designated the United States.
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Continuations (1)
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Number |
Date |
Country |
Parent |
PCT/DE98/02156 |
Jul 1998 |
US |
Child |
09/536029 |
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US |