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MCS3142-I/ST 数据表(PDF) 10 Page - Microchip Technology

部件名 MCS3142-I/ST
功能描述  MCS3142 Dual KEELOQ짰 Technology Encoder Data Sheet
PDF  37 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCS3142-I/ST 数据表(HTML) 10 Page - Microchip Technology

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MCS3142
DS40001747A-page 10
 2014 Microchip Technology Inc.
TABLE 3-6:
CLASSIC KEELOQ® TECHNOLOGY ENCODER CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x16
7:6
Seed Option
00 = No seed
01 = Limited and immediate
10 = Permanent and delayed
11 = Permanent and immediate
5:2
Reserved
Leave ‘0000’
1:0
Time Element Clock Prescaler 00 = 1:1
01 = 1:4
10 = 1:16
11 = 1:64
0x17
7
Reserved
Leave ‘0’
6:5
Blank Alternate Code Word
Configuration
00 = All words transmitted
01 = One in two words transmitted
10 = One in four words transmitted
11 = Reserved; illegal value
4:1
Reserved
—
0
Line Encoding
0 = PWM
1 = Manchester
TABLE 3-7:
CLASSIC KEELOQ® TECHNOLOGY TRANSMITTER CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x18
7:5
Frequency Deviation
Low three bits of frequency deviation calculation (see
Section 6.4 “Center Frequency and Frequency Devia-
tion”)
4Output Power
0 = 0 dBm
1 = +10 dBm
3:0
Reserved
Reserved, maintain as ‘1100’
0x19
7
Reserved
Reserved, maintain as ‘0’
6
Data Encoding
0 = FSK
1 = OOK
5Band
0 = 310-450 MHz
1 = 868-870, 902-928 MHz
4:0
Frequency Deviation
High five bits of frequency deviation calculation
TABLE 3-8:
CLASSIC KEELOQ® TECHNOLOGY MINIMUM AND MAXIMUM CODE WORDS COUNT
CONFIGURATION REGISTERS
Byte Address
Bit
Description
Values
0x1A
7:0
Minimum Code Word Count
Integer value of the minimum number of code words sent
0x1B
7:0
Maximum Code Word Count
Least Significant eight bits of value of the maximum
number of code words sent
0x1C
7:0
Most Significant eight bits of value of the maximum
number of code words sent



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