M93C46-DRE datasheet(15/32 Pages) STMICROELECTRONICS

Part #	M93C46-DRE

Description	16-Kbit, 8-Kbit, 4-Kbit, 2-Kbit and 1-Kbit

PDF	32 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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15 / 32 page

DocID028496 Rev 1

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M93Cx6-DRE

Instructions

5.2.3

Write All

As with the Erase All Memory (ERAL) instruction, the format of the Write All Memory with

same Data (WRAL) instruction requires that a dummy address be provided. As with the

Write Data to Memory (WRITE) instruction, the format of the Write All Memory with same

Data (WRAL) instruction requires that an 8-bit data byte, or 16-bit data word, be provided.

This value is written to all the addresses of the memory device. The completion of the cycle

can be detected by monitoring the READY/BUSY line, as described next.

Figure 6. WRAL sequence

For the meanings of Xn and Dn, please see Table 5, Table 6 and Table 7.

5.2.4

ECC (Error Correction Code) and Write cycling

The devices identified with the Process letter “K” embed an Error Correction Code (ECC)

internal logic function which is transparent for the Microwire communication protocol.

The ECC logic is implemented on each byte.

M93C46-DRE Datasheet(PDF) 15 Page - STMicroelectronics