DS2506 데이터 시트보기 (PDF) - Dallas Semiconductor -> Maxim Integrated

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DS2506

64-kbit Add-Only Memory

Dallas Semiconductor -> Maxim Integrated 

DS2506

Note that the initial pass through the Read Status flow chart will generate a 16-bit CRC value that is the

result of clearing the CRC generator and then shifting in the command byte followed by the two address

bytes, and finally the data bytes beginning at the first addressed memory location and continuing through

to the last byte of the addressed EPROM Status data page. The last byte of a Status data page always has

an ending address of xx7 or xxFH. Subsequent passes through the Read Status flow chart will generate a

16-bit CRC that is the result of clearing the CRC generator and then shifting in the new data bytes starting

at the first byte of the next page of the EPROM Status data field.

This feature is provided since the EPROM Status information may change over time making it impossible

to program the data once and include an accompanying CRC that will always be valid. Therefore, the

Read Status command supplies a 16-bit CRC that is based on and always is consistent with the current

data stored in the EPROM Status data field.

MEMORY FUNCTION FLOW CHART Figure 5

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