ds2423 Maxim Integrated Products, Inc., ds2423 Datasheet - Page 17

• Manufacturer Part Number: ds2423
• Description: Ds2423 4kbit 1-wire Ram With Counter
• Manufacturer: Maxim Integrated Products, Inc.

ROM FUNCTIONS FLOW CHART Figure 9 (First Part)
1)
2)
Serial Number
To be transmitted or received at Overdrive speed if
OD = 1.
The Presence Pulse will be short if OD = 1.
Family Code
DS2423 TX
DS2423 TX
DS2423 TX
CRC Byte
6 Bytes
ROM?
1 Byte
Read
33H
From Memory Functions
Y
Flow Chart (Figure 7)
1)
1)
1)
N
Master TX Bit 0
Master TX Bit 1
Master TX Bit 63
Bit 63 Match?
Bit 0 Match?
Bit 1 Match?
ROM?
Match
55H
Y
Y
Y
Y
Function Command
N
N
N
1)
1)
1)
Master TX ROM
Presence Pulse
Reset Pulse?
N
Reset Pulse
DS2423 TX
Master TX
Short
N
N
N
17 of 25
DS2423 TX Bit 0
DS2423 TX Bit 0
Master TX Bit 0
DS2423 TX Bit 1
DS2423 TX Bit 1
Master TX Bit 1
DS2423 TX Bit 63
DS2423 TX Bit 63
Master TX Bit 63
Bit 63 Match?
Bit 0 Match?
Bit 1 Match?
Y
Search
ROM?
F0H
To Memory Functions
Flow Chart (Figure 7)
N
2)
1)
Y
Y
Y
Y
OD = 0
1)
1)
1)
1)
1)
1)
1)
1)
1)
N
From Figure 9
From Figure 9
To Figure 9
To Figure 9
2
2
2
2
nd
nd
nd
nd
Part
Part
Part
Part