DS2407 Ver la hoja de datos (PDF) - Dallas Semiconductor -> Maxim Integrated
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componentes Descripción
Fabricante
DS2407 Datasheet PDF : 31 Pages
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DS2407
MEMORY FUNCTION FLOW CHART Figure 6 (cont’d)
FROM FIGURE 6
SECOND PART
AAh
N
READ STATUS
?
Y
BUS MASTER TX
TA1 (T7:T0)
BUS MASTER TX
TA2 (T15:T8)
DS2506 SETS STATUS ADDRESS
= (T15:T0)
F5h
CHANNEL
N
ACCESS
?
Y
BUS MASTER TX
CONTROL BYTE 1
BUS MASTER TX
CONTROL BYTE 2
BUS MASTER RX
CHANNEL INFO BYTE
BUS MASTER
TX RESET
DS2407 TX
PRESENCE PULSE
BUS MASTER RX DATA
FROM
STATUS MEMORY
BUS MASTER
Y
TX RESET
?
DS2506 INCREMENTS
N
ADDRESS COUNTER
N
END OF
STATUS MEMORY
?
Y
BUS MASTER
Y
TX RESET
?
N
BUS MASTER RX CRC16
OF COMMAND,
ADDRESS, DATA
Y
BUS MASTER
TX RESET
?
N
BUS MASTER
RX 1’S
Y
BUS MASTER
TX RESET
?
N
WRITE
* BUS MASTER TX DATA
TO CHANNEL F/F
* MODE
?
READ
* BUS MASTER RX
DATA FROM PIOs
*SEE CHANNEL CONTROL BYTE 1
Y
AND FIGURE 7A.
BUS MASTER
TX RESET
?
N
CRC
N
* ENABLED
?
Y
* CRC
DUE
N
?
Y
Y
BUS MASTER
TX RESET
?
N
BUS MASTER RX CRC16 OF
COMMAND, CONTROL, DATA
(1ST PASS)
CRC16 OF DATA
(SUBSEQUENT PASSES)
DS2407 INCR. CRC
BYTE COUNTER
Y
BUS MASTER
TX RESET
?
N
DS2407 CLEARS
CRC BYTE COUNTER
DS2407 TX
PRESENCE PULSE
N
R/W TOGGLING
* ENABLED
?
Y
DS2407 TOGGLES
READ/WRITE MODE
012099 13/31
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