参数资料
型号: DS2423D/T&R
厂商: Maxim Integrated
文件页数: 9/26页
文件大小: 0K
描述: IC SRAM 4KBIT 6FCHIP
标准包装: 10,000
格式 - 存储器: RAM
存储器类型: SRAM
存储容量: 4K (256 x 16)
接口: 1 线 串行
工作温度: -40°C ~ 85°C
封装/外壳: 6-XBGA,FCBGA
供应商设备封装: 6-覆晶(2.82x2.54)
包装: 带卷 (TR)
DS2423
MEMORY FUNCTION FLOW CHART Figure 7
Master TX Memory
Function Command
1)
From ROM Functions
Flow Chart (Figure 9)
0FH
Write
Scratchpad
Y
Master TX
TA1 (T7:T0)
Master TX
TA2 (T15:T8)
DS2423 sets Scratch-
pad Offset = (T4:T0)
and Clears (PF, AA)
Master TX Data Byte
to Scratchpad Offset
N
1)
1)
1)
AAH
Read
Scratchpad
Y
Master RX
TA1 (T7:T0)
Master RX
TA2 (T15:T8)
Master RX Ending
Offset with Data
Status (E/S)
DS2423 sets Scratch-
pad Offset = (T4:T0)
To Figure 7
2 nd Part
N
1)
1)
1)
DS2423 sets (E4:E0)
= Scratchpad Offset
Master RX Data Byte
from Scratchpad Offset
1)
Master
TX Reset?
2)
Y
Master
TX Reset?
2)
Y
DS2423 Incre-
ments Scratch-
pad Offset
N
Y
N
Scratch-
pad Offset =
11111b?
Y
Master
TX Reset?
N
2)
Partial
Byte Written?
N
DS2423 Incre-
ments Scratch-
pad Offset
N
Y
PF = 1
N
Scratch-
pad Offset =
11111b?
Y
Master RX "1"s
1)
Master RX CRC16 of
Command, Address, Data
1)
Y
Master
TX Reset?
N
Master RX "1"s
2)
1)
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 normal speed if OD = 0 or if
the DS2423 is to be reset from Overdrive speed to regular
speed.
9 of 25
To ROM Functions
Flow Chart (Figure 9)
From Figure 7
2 nd Part
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