DS28E01-100 Maxim, DS28E01-100 Datasheet - Page 7

• Manufacturer Part Number: DS28E01-100
• Description: The DS28E01-100 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the ISO/IEC 10118-3 Secure Hash Algorithm (SHA-1)
• Manufacturer: Maxim

Figure 2. Hierarchic Structure for 1-Wire Protocol
Figure 3. 64-Bit Lasered ROM
Figure 4. 1-Wire CRC Generator
1-Wire ROM FUNCTION COMMANDS
X
0
DEVICE-SPECIFIC MEMORY
FUNCTION COMMANDS
MSB
MSB
STAGE
COMMAND LEVEL:
1ST
(SEE FIGURE 10)
(SEE FIGURE 8)
CRC CODE
X
1
8-BIT
_______________________________________________________________________________________
STAGE
2ND
LSB
ABRIDGED DATA SHEET
X
2
MSB
STAGE
3RD
AVAILABLE COMMANDS:
READ ROM
MATCH ROM
SEARCH ROM
SKIP ROM
RESUME
OVERDRIVE-SKIP ROM
OVERDRIVE-MATCH ROM
X
3
STAGE
4TH
1Kb Protected 1-Wire EEPROM
POLYNOMIAL = X
DS28E01-100
48-BIT SERIAL NUMBER
X
4
8
+ X
Refer to the full data sheet.
5
STAGE
DATA FIELD AFFECTED:
64-BIT REG. #, RC-FLAG
64-BIT REG. #, RC-FLAG
64-BIT REG. #, RC-FLAG
RC-FLAG
RC-FLAG
RC-FLAG, OD-FLAG
64-BIT REG. #, RC-FLAG, OD-FLAG
5TH
+ X
4
+ 1
with SHA-1 Engine
X
5
STAGE
6TH
LSB
X
6
MSB
STAGE
7TH
8-BIT FAMILY CODE
X
INPUT DATA
7
STAGE
8TH
LSB
LSB
X
8
7