參數(shù)資料
型號： 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
文件頁數(shù)： 19/60頁
文件大小： 502K
代理商： RFHCS362F
2002 Microchip Technology Inc.
Preliminary
DS41189A-page 19
rfHCS362G/362F
FIGURE 3-10: SEED CODE WORD FORMAT
3.4
Seed Code Word Data Format
A seed transmission transmits a unencrypted code
word that consists of 60 bits of fixed data that is stored
in the EEPROM. This can be used for secure learning
of encoders or whenever a fixed code transmission is
required. The seed code word further contains the
function code and the status information (V
LOW
, CRC
and QUEUE) as configured for normal code hopping
code words. The seed code word format is shown in
Figure 3-10. The function code for seed code words is
always ‘
1111b
’.
Seed code words can be configured as follows:
Enabled permanently.
Disabled permanently.
Enabled until the synchronization counter is
greater than 7Fh, this configuration is often
referred to as
Limited Seed
.
The time before the seed code word is transmitted
can be set to 1.6 s or 3.2 s, this configuration is
often referred to as
Delayed Seed
. When this
option is selected, the rfHCS362 will transmit a
code hopping code word for 1.6 s or 3.2 s, before
the seed code word is transmitted.
3.4.1
SEED OPTIONS
The button combination (
S[3210]
) for transmitting a
Seed code word can be selected with the Seed and
SeedC (
SEED
[
0..1
] and
SEEDC
) configuration
options as shown in Table 3-1 and Table 3-2:
TABLE 3-1:
SEED OPTIONS (SEEDC = 0)
TABLE 3-2:
SEED OPTIONS (SEEDC = 1)
Example A):
Selecting
SEEDC =
1
and
SEED =
11
:
makes SEED transmission available every time the
combination of buttons S3 and S0 is pressed simulta-
neously, but Delayed Seed mode is not available.
Example B):
Selecting
SEEDC = 0
and
SEED =
01
:
makes SEED transmission available only for a limited
time (only up to 128 times). The combination of buttons
S2 and S0 produces an immediate transmission of the
SEED code. Pressing and holding for more than 1.6
seconds the S0 button alone produces the SEED code
word transmission (Delayed Seed).
Transmission Direction LSB First
Fixed Portion
(9 bits)
QUE
(2 bits)
CRC
(2 bits)
V
LOW
(1-bit)
SEED
With QUEN = 1
BUT
(4 bits)
SEED Code
(60 bits)
Q1 Q0
C1
C0
1
1
1
1
Seed
1.6 s Delayed Seed
SEED
S[3210]
S[3210]
00
01
10
11
Note:
-
-
0101*
0101
0101
0001*
0001
-
*Limited Seed
Seed
3.2 s Delayed Seed
SEED
S[3210]
S[3210]
00
01
10
11
Note:
-
-
1001*
1001
1001
0011*
0011
-
*Limited Seed
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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: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:未知廠家 功能描述:MCP23016 Datasheet
RFHCS362G_11 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:KEELOQ? Code Hopping Encoder with UHF ASK/FSK Transmitter
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