M95010-R datasheet(18/46 Pages) STMICROELECTRONICS

部件名	M95010-R

功能描述	Compatible with SPI bus serial interface

PDF	46 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

18 / 46 page

Instructions

M950x0-W M950x0-R M950x0-DF

18/46

DocID6512 Rev 13

6.2

Write Disable (WRDI)

One way of resetting the Write Enable Latch (WEL) bit is to send a Write Disable instruction

to the device. As shown in Figure 8: Write Disable (WRDI) sequence, to send this instruction

to the device, Chip Select (S) is driven low, and the bits of the instruction byte are shifted in,

on Serial Data Input (D). The device then enters a wait state. It waits for a the device to be

deselected, by Chip Select (S) being driven high.

The Write Enable Latch (WEL) bit is reset by any of the following events:

•

Power-up

•

WRDI instruction execution

•

WRSR instruction completion

•

WRITE instruction completion

•

Write Protect (W) line being held low.

Figure 8. Write Disable (WRDI) sequence

M95010-R 数据表(PDF) 18 Page - STMicroelectronics