48LM01 datasheet(19/40 Pages) MICROCHIP

tên linh kiện	48LM01

Giải thích chi tiết về linh kiện	512-Kbit/1-Mbit SPI Serial EERAM

PDF	40 Pages

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DS20006008C-page 19

48L512/48LM01

8.1.2

CONTINUOUS WRITE

Writing to a number of SRAM bytes is similar to a byte

write, however, more bytes can be added after the first

byte in the same write cycle. If more bytes of data are

transmitted than what will fit to the end of that memory

array, the address counter will “roll over” to the

beginning of the SRAM array. Previously written data

will be overwritten.

Upon completion of the write, the 48L512/48LM01

automatically returns to the Write Disable state

(STATUS register bit WEL = 0).

FIGURE 8-2:

CONTINUOUS SRAM WRITE WAVEFORM

Note:

If the CS pin is deselected at somewhere

other than the end of an 8-bit byte

boundary, the last partial byte operation

will be aborted and the completed bytes

will be written to the SRAM array.

SCK

02 3 4

5 6 7

DD D D D D D D

Data In Byte n

MSb

High-Impedance

000

DD D D D D D

WRITE Opcode

Data In Byte 1

MSb

Address (2 or 3 bytes)

AAAA A

MSb

AA A

48LM01 bảng dữ liệu(PDF) 19 Page - Microchip Technology