DS1963S datasheet(5/37 Pages) DALLAS

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DS1963S

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HIERARCHCAL STRUCTURE FOR 1-WIRE PROTOCOL Figure 2

DS1963S

Command

Level

Available

Commands

Data Fields

Affected

1-Wire Bus

Other

Devices

Bus

Master

Read ROM

Match ROM

Search ROM

Skip ROM

Resume

Overdrive Skip

Overdrive Match

64-bit ROM, RC-Flag

RC-Flag

64-bit ROM, RC-Flag, OD-Flag

DS1963S specific

Memory Function

Commands (see Figure 7)

Write Scratchpad

Read Scratchpad

Copy Scratchpad

Match Scratchpad

Erase Scratchpad

Read Memory

Read Authenti-

Compute SHA

cated Page

160 bits of Scratchpad, Flags

256-bit Scratchpad, Flags

Data Memory, Flags

256-bit Scratchpad, Flags

256-bit Scratchpad, HIDE Flag

Data Memory, Secrets Memory,

W/C Counter, Flags

Data Memory, W/C Counters of

bit ROM Registration Number, 160 bits

of Scratchpad, Flags, PRNG Counter

Memory Page and Secret, Secret, 64-

Several of the following Items,

Memory Page, Secret, 64-bit ROM

Registration Number, Scratchpad,

Data Memory, W/C Counter of

depending on selected Sub-Function:

Flags, PRNG Counter

1-Wire ROM Function

Commands (see Figure 10)

64-BIT LASERED ROM Figure 3

MSB

LSB

8-Bit CRC Code

48-Bit Serial Number

8-Bit Family Code (18h)

MSB

LSB MSB

LSB

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