DS2432 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

零件编号

产品描述 (功能)

生产厂家

DS2432

1k-Bit Protected 1-Wire™ EEPROM with SHA-1 Engine

Dallas Semiconductor -> Maxim Integrated 

PRELIMINARY

Memory and SHA Functions Flow Chart Figure 7

DS2432

Bus Master TX Memory

Function Command

From ROM Functions

Flow Chart (Figure 9)

0Fh

N

Write Scratch-

pad ?

Y

Bus Master TX

TA1 (T7:T0), TA2 (T15:T8)

To Figure 7

2nd Part

N

Address

Y

< 90h ?

DS2432 sets Scratchpad

Byte Counter = 0,

Clears PF, AA,

Sets T2:T0 = 0, 0, 0,

Sets E2:E0 = 1, 1, 1

Bus Master

RX “1”s

Master

N

TX Reset ?

Y

Master TX Data Byte

To Scratchpad

DS2432

Increments

Byte Counter

Master

Y

TX Reset ?

N

Partial

N

Byte ?

N

Byte Counter

=7?

Y

Y

PF = 1

DS2432 TX CRC16

of Command, Address,

Data Bytes as they were

sent by the bus master

Bus Master

N

Master

RX “1”s

TX Reset ?

Y

To ROM Functions

Flow Chart (Figure 9)

8 of 30

From Figure 7

2nd Part

Share Link: