參數(shù)資料
型號: DS1963
廠商: Maxim Integrated Products, Inc.
英文描述: 4K-Bit Monetary iButton(4K位貨幣按鈕)
中文描述: 4K的位貨幣iButton的(4K的位貨幣按鈕)
文件頁數(shù): 8/22頁
文件大小: 147K
代理商: DS1963
DS1962/DS1963
020698 8/22
MEMORY FUNCTION FLOW CHART
Figure 7
AAH
READ
SCRATCHPAD
BUS MASTER RX
TA1 (T7:T0)
BUS MASTER RX
TA2 (T15:T8)
DS196X SETS
SCRATCHPAD
OFFSET=(T4:T0)
MASTER RX
ENDING OFFSET
WITH STATUS (E/S)
BUS MASTER
TX RESET
SCRATCH–
PAD OFFSET=
11111b
Y
BUS MASTER
RX “1”s
Y
N
MASTER TX MEMORY
FUNCTION COMMAND
0FH
WRITE
SCRATCHPAD
N
BUS MASTER TX
TA1 (T7:T0)
BUS MASTER TX
TA2 (T15:T8)
DS196X SETS SCRATCHPAD
OFFSET
=
(T4:T0) AND
CLEARS (PF, AA)
MASTER TX DATA
BYTE TO
SCRATCHPAD OFFSET
DS196X SETS
(E4:E0)
=
SCRATCHPAD
OFFSET
BUS MASTER
TX RESET
BUS MASTER
TX RESET
DS196X INCREMENTS
SCRATCHPAD OFFSET
PARTIAL
BYTE
WRITTEN
N
BUS MASTER
RX “1”s
BUS MASTER
TX RESET
PF
=
1
Y
Y
N
N
Y
Y
N
Y
Y
FROM ROM FUNCTIONS
FLOW CHART (FIGURE 9)
1)
1)
1)
1)
2)
BUS MASTER RX CRC16 OF
COMMAND, ADDRESS, DATA
N
2)
2)
1)
1)
DS196X INCREMENTS
SCRATCHPAD OFFSET
MASTER RX DATA
BYTE FROM
SCRATCHPAD OFFSET
1)
N
2)
1)
1)
1)
1)
Y
TO FIGURE 7
SECOND PART
FROM FIGURE 7
SECOND PART
TO ROM FUNCTIONS
FLOW CHART (FIGURE 9)
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 DS196X is to be reset from Overdrive Speed to regular speed
SCRATCH–
PAD OFFSET=
11111b
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