Rainbow-electronics DS2432 Manual de usuario Pagina 10
- Pagina / 30
- Tabla de contenidos
- MARCADORES
- 1k-Bit Protected 1-Wire 1
- EEPROM with SHA-1 Engine 1
- OVERVIEW 2
- DS2432 BLOCK DIAGRAM Figure 1 2
- 64-BIT LASERED ROM 3
- 64-BIT LASERED ROM Figure 3 3
- 1-WIRE CRC GENERATOR Figure 4 4
- MEMORY MAP 4
- DS2432 MEMORY MAP Figure 5 4
- ADDRESS REGISTERS Figure 6 5
- WRITING WITH VERIFICATION 6
- Write Scratchpad [0Fh] 6
- Read Scratchpad [AAh] 7
- Load First Secret [5Ah] 7
- PRELIMINARY DS2432 10
- 10 of 30 10
- 11 of 30 11
- 12 of 30 12
- 13 of 30 13
- 14 of 30 14
- Result of Compute Next Secret 15
- Compute Next Secret [33h] 15
- Copy Scratchpad [55h] 16
- Read Authenticated Page [A5h] 17
- 18 of 30 18
- Read Memory [F0h] 19
- SHA-1 COMPUTATION ALGORITHM 19
- 1-WIRE BUS SYSTEM 20
- HARDWARE CONFIGURATION 20
- TRANSACTION SEQUENCE 21
- INITIALIZATION 21
- ROM FUNCTION COMMANDS 21
- 22 of 30 22
- 23 of 30 23
- 24 of 30 24
- 1-WIRE SIGNALING 25
- Read/Write Time Slots 26
- OVERDRIVE SPEED 27
- 29 of 30 29
- AC ELECTRICAL CHARACTERISTICS 30
- OVERDRIVE SPEED (V 30
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