BQ2026 Datasheet, PDF (10/22 Pages) Texas Instruments – 1.5K-Bit Serial EPROM With SDQ Interface

bq2026
SLUS938 – DECEMBER 2011
Read
Memory
Flow
Write
Memory
Flow
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Master TX:
16-bit address, A
Master TX:
16-bit address, A
Master RX:
8-bit data at A
A=A +1
Master TX:
8-bit data, D
A = 0x00BF?
NO
YES
Master RX:
CRC of all data transmitted
Master RX:
CRC of M/F cmd, A & D
Master TX:
Programming Pulse
Master RX:
CRC of preloaded
A[15:0] & shifted D
Master TX:
8-bit data, D
CRC = A[15:0]
ROM
Function
Flow
Master RX: D
A = 0x00BF?
NO
YES
ROM
Function
Flow
A=A+1
Figure 9. General Use OTP Memory Read and Write Flowchart
10
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