Winbond: Difference between revisions
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The xx refers to the package code. The IT part sets the BUF mode selector to 0 on initialization. The IG part sets BUF to 1. Both allow the mode to be configured by writing to the BUF bit of the Configuration Register. | The xx refers to the package code. The IT part sets the BUF mode selector to 0 on initialization. The IG part sets BUF to 1. Both allow the mode to be configured by writing to the BUF bit of the Configuration Register. | ||
The device has JEDEC Manufacturer ID 0xEF and | The device has JEDEC Manufacturer ID 0xEF and Device ID 0xAA21. | ||
Bad blocks are marked at the factory with a non-0xff byte as their first byte, and a non-0xff byte as the first byte of the first page's Spare Area (i.e. all blocks marked with 0xff as their first byte, and as the first byte of the first page's Spare Area, are considered good). Before executing the first program or erase instruction, pages ought be inspected, and added to the LUT if necessary. | Bad blocks are marked at the factory with a non-0xff byte as their first byte, and a non-0xff byte as the first byte of the first page's Spare Area (i.e. all blocks marked with 0xff as their first byte, and as the first byte of the first page's Spare Area, are considered good). Before executing the first program or erase instruction, pages ought be inspected, and added to the LUT if necessary. | ||