6

5165E–SEEPR–8/08

AT25512

ground and still be able to write to the status register. All WP pin functions are enabled when the

WPEN bit is set to “1”.

Figure 2-1.

SPI Serial Interface

3.

Functional Description

The AT25512 is designed to interface directly with the synchronous serial peripheral interface

(SPI) of the 6800 type series of microcontrollers.

The AT25512 utilizes an 8-bit instruction register. The list of instructions and their operation

codes are contained in see Table 4-3. All instructions, addresses, and data are transferred with

the MSB first and start with a high-to-low CS transition.

AT25512