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48LM01 데이터시트(PDF) 19 Page - Microchip Technology

부품명 48LM01
상세설명  512-Kbit/1-Mbit SPI Serial EERAM
PDF  40 Pages
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제조업체  MICROCHIP [Microchip Technology]
홈페이지  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

48LM01 데이터시트(HTML) 19 Page - Microchip Technology

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 2018-2019 Microchip Technology Inc.
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.
CS
SCK
1
02 3 4
5 6 7
SI
DD D D D D D D
Data In Byte n
MSb
High-Impedance
SO
0
000
0
0
1
0
DD D D D D D
WRITE Opcode
Data In Byte 1
D
MSb
MSb
Address (2 or 3 bytes)
AAAA A
MSb
AA A



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