參數(shù)資料
型號(hào)： RFHCS362F
廠商： Microchip Technology Inc.
英文描述： Code Hopping Encoder with UHF ASK/FSK Transmitter
中文描述： 跳碼編碼器的超高頻ASK / FSK發(fā)射器
文件頁(yè)數(shù)： 27/60頁(yè)
文件大?。?/td> 502K
代理商： RFHCS362F
2002 Microchip Technology Inc.
Preliminary
DS41189A-page 27
rfHCS362G/362F
5.0
PROGRAMMING THE
rfHCS362G/362F
When using the rfHCS362G/362F in a system, the user
will have to program some parameters into the device,
including the serial number and the secret key before it
can be used. The programming cycle allows the user to
input all 288 bits in a serial data stream, which are then
stored internally in EEPROM. Programming will be
initiated by forcing the DATA line HIGH, after the S2 line
has been held HIGH for the appropriate length of time
(Table 10-3 and Figure 5-1). After the Program mode is
entered, a delay must be provided to the device for the
automatic bulk write cycle to complete. This will write all
locations in the EEPROM to an all zeros pattern includ-
ing the OSC calibration bits.
The device can then be programmed by clocking in 16
bits at a time, using S2 as the clock line and DATA as
the data in-line. After each 16-bit word is loaded, a pro-
gramming delay is required for the internal program
cycle to complete. This delay can take up to Twc. At the
end of the programming cycle, the device can be veri-
fied (Figure 5-2) by reading back the EEPROM. Read-
ing is done by clocking the S2 line and reading the data
bits on DATA. For security reasons, it is not possible to
execute a Verify function without first programming the
EEPROM.
A Verify operation can only be done
once, immediately following the Program cycle
.
FIGURE 5-1:
PROGRAMMING WAVEFORMS
FIGURE 5-2:
VERIFY WAVEFORMS
Note:
To ensure that the device does not
accidentally enter Programming mode,
DATA should never be pulled high by
the circuit connected to it. Special care
should be taken when driving circuits
other than the RFEN
IN
.
DATA
(Data)
Enter Program
Mode
(Clock)
Note 1:
Unused button inputs to be held to ground during the entire programming sequence.
2:
The V
DD
pin must be taken to ground after a Program/Verify cycle.
Bit 0
Bit 1
Bit 2
Bit 3
Bit 14
Bit 15
Bit 16
Bit 17
T
PH
1
T
PBW
T
PS
Repeat for each word (18 times)
T
PH
2
T
CLKH
T
CLKL
T
WC
T
DS
S2 (S3)
Data for Word 0 (KEY_0)
Data for Word 1
T
DH
DATA
(Data)
(Clock)
Note:
If a Verify operation is to be done, then it must immediately follow the Program cycle.
End of Programming Cycle
Beginning of Verify Cycle
Bit 1
Bit 2
Bit 3
Bit 15
Bit 14
Bit 16 Bit 17
Bit286 Bit287
T
WC
Data from Word 0
T
DV
S2 (S3)
Bit 0
Bit287
Bit286
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
RFHCS362F-I/SS 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Code Hopping Encoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
RFHCS362FT-I/SS 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Code Hopping Encoder RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
RFHCS362G 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:Code Hopping Encoder with UHF ASK/FSK Transmitter
RFHCS362G/362F 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:MCP23016 Datasheet
RFHCS362G_11 制造商:MICROCHIP 制造商全稱(chēng):Microchip Technology 功能描述:KEELOQ? Code Hopping Encoder with UHF ASK/FSK Transmitter
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