Datasheet

23A1024/23LC1024
DS20005142B-page 6  2012-2013 Microchip Technology Inc.
FIGURE 2-1: BYTE READ SEQUENCE (SPI MODE)
FIGURE 2-2: BYTE WRITE SEQUENCE (SPI MODE)
TABLE 2-1: INSTRUCTION SET
Instruction Name Instruction Format
Hex
Code
Description
READ 0000 0011 0x03 Read data from memory array beginning at selected address
WRITE 0000 0010 0x02 Write data to memory array beginning at selected address
EDIO 0011 1011 0x3B Enter Dual I/O access
EQIO 0011 1000 0x38 Enter Quad I/O access
RSTIO 1111 1111 0xFF Reset Dual and Quad I/O access
RDMR 0000 0101 0x05 Read Mode Register
WRMR 0000 0001 0x01 Write Mode Register
SO
SI
SCK
CS
0 234567891011 29303132333435363738391
0100000123 22 21 20 210
76543210
Instruction 24-bit Address
Data Out
High-Impedance
SO
SI
CS
9 1011 2930313233343536373839
0000000123 22 21 20 21076543210
Instruction 24-bit Address Data Byte
High-Impedance
SCK
0 23456718