参数资料
型号: DS2422X
厂商: DALLAS SEMICONDUCTOR
元件分类: Memory IC:Other
英文描述: SPECIALTY MEMORY CIRCUIT, UUC
文件页数: 23/23页
文件大小: 146K
代理商: DS2422X
DS2422/DS2423
021998 9/23
MEMORY FUNCTION FLOW CHART Figure 7 cont’d
N
5AH
COPY
SCRATCHPAD
?
N
BUS MASTER TX
TA1 (T7:T0)
Y
1)
TO FIGURE 7
1) To be transmitted or received at Overdrive Speed if OD = 1
2) Reset Pulse to be transmitted at Overdrive Speed if OD = 1
Reset Pulse to be transmitted at regular speed if OD = 0
or if the DS242X is to be reset from Overdrive Speed to regular speed
BUS MASTER TX
TA2 (T15:T8)
1)
BUS MASTER TX
E/S BYTE
1)
AU–
THORI–
ZATION CODE
MATCH
Y
AA = 1
DS242X COPIES
SCRATCHPAD DATA
TO MEMORY
FROM FIGURE 7
FIRST PART
THIRD PART
F0H
READ MEMORY
?
N
BUS MASTER TX
TA1 (T7:T0)
Y
1)
BUS MASTER TX
TA2 (T15:T8)
1)
DS242X SETS MEMORY
ADDRESS = (T15:T0)
1)
COPYING
FINISHED
?
N
Y
DS242X TX “0”
BUS MASTER
TX RESET
?
DS242X TX “1”
BUS MASTER
TX RESET
?
N
BUS MASTER
TX RESET
?
BUS MASTER
RX “1”S
N
1)
2)
1)
2)
1)
N
Y
1)
TO FIGURE 7
FROM FIGURE 7
THIRD PART
FIRST PART
MASTER RX DATA
BYTE FROM
MEMORY ADDRESS
DS242X
INCREMENTS
ADDRESS COUNTER
BUS MASTER
TX RESET
?
N
END
OF MEMORY
?
Y
BUS MASTER
RX “1”S
BUS MASTER
RX “1”S
Y
2)
N
1)
Y
相关PDF资料
PDF描述
DS2423P/T&R SPECIALTY MEMORY CIRCUIT, PDSO6
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