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BQ26100DRP Datasheet(PDF) 10 Page - Texas Instruments

Part # BQ26100DRP
Description  SHA-1/HMAC BASED SECURITY AND AUTHENTICATION IC WITH SDQ INTERFACE
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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BQ26100DRP Datasheet(HTML) 10 Page - Texas Instruments

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A = A +1
ROM
Function
Flow
Master TX:
16-bitaddress, A
MasterRX:
CRCofM/Fcmd& A
MasterRX:
D
MasterRX:
8-bitdata@ A
A =0x001F?
YES
Read
Page4
M/F=0xFA
NO
A =0x001F?
NO
ROM
Function
Flow
Master TX:
ProgrammingPulse
MasterRX:
CRCofpreloaded
A[7:0]&shiftedD
YES
Write
Page4
M/F=0xAF
Master TX:
16-bitaddress, A
A = A +1
MasterRX:
CRCofalldatatransmitted
MasterRX:
CRCofM/Fcmd, A &D
Master TX:
8-bitdata,D
Master TX:
8-bitdata,D
CRC= A[7:0]
(1)
(1)
bq26100
SLUS696 – JUNE 2006
General Use — Memory Function Commands 0xFA (Read) and 0xAF (Write)
The general use space is erased to read 0x00. Data written to the general space is ORed with data already
present at the address to be written. A bit can only be flipped from 0 to 1.
Table 2. General Memory Space Addressing
ADDRESSES
FUNCTION
0x001F – 0x0000
Page 4 – 32 bytes general use
(1)
16-Bit address is sent with lower 8-bit address followed by higher 8-bit address with least significant bit first.
Figure 7. General Memory OTP Write/Read Flows
10
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