Rainbow-electronics DS2784 Manual do Utilizador descarregar pdf (Página 35)

DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication

Table 12. Guide to Function Command Requirements

COMMAND

ISSUE MEMORY

ADDRESS

ISSUE 00h

BEFORE READ

READ/WRITE

TIME SLOTS

Write Challenge —

—

Write: 64

Compute MAC — Yes Read: up to 160

Compute Next Secret — — —

Clear/Lock Secret, Set/Clear

Overdrive

— — —

Read Data 8 bits — Read: up to 2048

Write Data 8 bits — Write: up to 2048

Copy Data 8 bits — —

Recall Data 8 bits — —

Lock 8 bits — —

Reset —

—

Figure 9. Compute MAC Function Command

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Rainbow-electronics DS2784 Manual do Utilizador Página 35