參數(shù)資料
型號: HCS370TSL
廠商: Microchip Technology Inc.
英文描述: KEELOQ Code Hopping Encoder
中文描述: 而Keeloq跳碼編碼器
文件頁數(shù): 10/36頁
文件大小: 518K
代理商: HCS370TSL
HCS370
DS41111D-page 10
Preliminary
2002 Microchip Technology Inc.
3.1
Dual Encoder Operation
The HCS370 contains two transmitter configurations
with separate serial numbers, encoder keys, discrimi-
nation values, syncronization counters, and seed val-
ues. The code word is calculated using one of two
possible encoder configurations. Most options for code
word and modulation formats can be different from
Encoder 1 and Encoder 2. However, LED and RF
transmitter options have to be the same. The SHIFT
input pin is used to select between the encoder config-
urations. A low on the SHIFT pin will select Encoder 1
and a high will select Encoder 2.
Symbol
Address
16
:Bits
Description
(1)
Reference
Section
WAKE
3F: ---- --10
Wake-up
(1)
Value
2
00
01
10
11
16 bits = 0
Disable = 0
2.2 V = 0
ASK = 0
Value
2
00
01
10
11
Disable = 0
Disable = 0
Value
2
00
01
10
11
Value
4.1
No Wake-up
75 ms 50%
50 ms 33.3%
100 ms 16.7%
20 bits = 1
Enable = 1
3.2V = 1
FSK = 1
Value
1
2
4
8
Enable = 1
Enable = 1
Time(s)
0.8
3.2
12.8
25.6
CNTSEL
VLOWL
VLOWSEL
PLLSEL
MTX
3F: ---- -2--
3F: ---- 3---
3F: ---4 ----
3F: --5- ----
3D: ---- --10
Counter Select
Low Voltage Latch Enable
Low Voltage Trip Point Select
(2)
PLL Interface Select
Minimum Code Words
3.2.1
3.2.3.1
3.2.3.1
5.2
2.0
SOEN
WAIT
TSEL
3D: ---- 3---
3D: ---- -2--
3D: --54 ----
SLEEP Output Enable
Wait for Step-Up Regulator
Time-out Select
(1)
5.4
5.2, 5.4
2.0
Note 1:
All Timing values vary ±10%.
Voltage thresholds are ±150 mV.
2:
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