Rainbow Electronics DS1972 - Manual (Page 17)

DS1972: 1024-Bit EEPROM iButton
17 of 23
Figure 9-2. ROM Functions Flow Chart (continued)
To Figure 9
1 st Part
From Figure 9
1 st Part
From Figure 9
1 st Part
To Figure 9, 1 st Part
Y
N A5h
Resume
Command ?
RC = 1 ?
Y
N 3Ch
Overdrive-
Skip ROM ?
RC = 0 ; OD = 1
Master
TX Reset ?
Y
N
N
Y
Master
TX Reset ?
N
Y
Master TX Bit 0
Master TX Bit 63
Master TX Bit 1
Bit 63
Match ?
RC = 0 ; OD = 1
RC = 1
Bit 1
Match ?
Y
N
Y
N
Bit 0
Match ?
Y
N
Y
N 69h
Overdrive-Match
ROM ?
OD = 0
OD = 0
OD = 0