DS28E01-100 Datasheet, PDF (10/16 Pages) Dallas Semiconductor – 1K-Bit Protected 1-Wire EEPROM with SHA-1 Engine

Abridged Data Sheet
Figure 10-1. ROM Functions Flow Chart
From Memory Functions
Flow Chart (Figure 8)
Bus Master TX
Reset Pulse
OD
N
Reset Pulse ?
OD = 0
Y
Bus Master TX ROM
Function Command
DS28E01 TX
Presence Pulse
33h
N
Read ROM
Command ?
Y
RC = 0
DS28E01 TX
Family Code
(1 Byte)
DS28E01 TX
Serial Number
(6 Bytes)
DS28E01 TX
CRC Byte
55h
N
Match ROM
Command ?
Y
RC = 0
F0h
N
Search ROM
Command ?
Y
RC = 0
Master TX Bit 0
DS28E01 TX Bit 0
DS28E01 TX Bit 0
Master TX Bit 0
Bit 0
N
Match ?
Y
Master TX Bit 1
N
Bit 0
Match ?
Y
DS28E01 TX Bit 1
DS28E01 TX Bit 1
Master TX Bit 1
Bit 1
Match ?
NN
Y
Bit 1
Match ?
Y
Master TX Bit 63
DS28E01 TX Bit 63
DS28E01 TX Bit 63
Master TX Bit 63
Bit 63
Match ?
NN
Y
RC = 1
Bit 63
Match ?
Y
RC = 1
To Memory Functions
Flow Chart (Figure 8)
DS28E01-100
From Figure 10, 2^nd Part
To Figure 10
CCh
2^nd Part
Skip ROM
Command ?
N
Y
RC = 0
To Figure 10
2^nd Part
From Figure 10
2^nd Part
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