DS28E05 Ver la hoja de datos (PDF) - Maxim Integrated

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DS28E05

1-Wire EEPROM

Maxim Integrated 

DS28E05

1-Wire EEPROM

MASTER Tx MEMORY

FUNCTION COMMAND

FROM ROM FUNCTIONS

FLOWCHART (FIGURE 8)

F0h

N

READ MEMORY?

Y

MASTER Tx

STARTING ADDRESS T[15:0]

N

ADDRESS

< 0080h?

Y

DS28E05 SETS MEMORY

ADDRESS = (T[15:0])

DS28E05

INCREMENTS

ADDRESS

COUNTER

MASTER Rx

DATA BYTE FROM

MEMORY ADDRESS

MASTER

Y

Tx RESET?

N

N

END OF

MEMORY?

Y

MASTER

N

Rx “1”s

MASTER

Tx RESET?

Y

TO ROM FUNCTIONS

FLOWCHART (FIGURE 8)

Figure 6. Memory Functions Flowchart

55h

N

WRITE MEMORY?

Y

MASTER Tx PARAMETER BYTE

MASTER Tx FFh BYTE

N

PARAMETER

BYTE AND FFh BYTE

VALID?

Y

MASTER Tx 2 DATA BYTES

MASTER Rx (READS BACK)

2 DATA BYTES AND VERIFIES

N

MASTER

Tx FFh RELEASE

BYTE?

Y

MASTER WAITS 1 x tPROG*

MASTER Rx CS BYTE

DS28E05

INCREMENTS

ADDRESS

COUNTER

MASTER

Y

Tx RESET?

N

SEGMENT #

N

= 7?

Y

MASTER

N

Rx “1”s

MASTER

Tx RESET?

Y

*1-Wire IDLE HIGH FOR POWER.

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