参数资料
型号: DS1921Z-F5#
厂商: Maxim Integrated
文件页数: 34/45页
文件大小: 0K
描述: IBUTTON THERMOCHRON F5
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
RoHS指令信息: IButton RoHS Compliance Plan
标准包装: 8
系列: iButton®
存储容量: 512B
存储器类型: NVSRAM(非易失 SRAM)
产品目录页面: 1431 (CN2011-ZH PDF)
Command-Specific 1-Wire Communication Protocol — Color Codes
DS1921H/Z
Master to slave
Slave to master
Write Scratchpad, reaching the end of the Scratchpad
RST
PD
Select
WS
TA
<data to EOS>
CRC16
FF loop
Write Scratchpad, not reaching the end of the Scratchpad
RST
PD
Select
WS
TA
<data>
RST
PD
Read Scratchpad
RST
PD
Select
RS
TA-E/S
<data to EOS>
CRC16
FF loop
Copy Scratchpad (success)
RST
PD
Select
CPS
TA-E/S
Busy
AA loop
Copy Scratchpad (invalid TA-E/S)
RST
PD
Select
CPS
TA-E/S
FF loop
Read Memory (success)
RST
PD
Select
RM
TA
<data to EOM>
00 loop
Read Memory (invalid address)
RST
PD
Select
RM
TA
00 loop
Reading reserved pages 20 through 63 or 68 through 127 or pages 192 and higher (beyond datalog
memory) will result in 00h bytes.
Read Memory with CRC (success)
RST
PD
Select
RMC
TA
<data to EOP>
CRC16
<32 bytes>
CRC16
Loop
The "32 bytes" are either valid page data or 00h bytes when reading reserved pages 20 through 63 or 68
through 127 or pages 192 and higher (beyond datalog memory).
34 of 45
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