hcs370 Microchip Technology Inc., hcs370 Datasheet - Page 9

• Manufacturer Part Number: hcs370
• Description: Keeloq Code Hopping Encoder
• Manufacturer: Microchip Technology Inc.

TABLE 3-3:
2002 Microchip Technology Inc.
TABLE 3-2:
KEY2
SEED2
SYNC2
SER2
DISC2
MSEL2
HSEL2
XSER2
QUEN2
STEN2
LEDBL2
LEDOS2
SDLM2
SDMD2
SDBT2
SDTM2
BSEL2
GSEL2
Note 1: All Timing values vary ±10%.
Symbol
Address
2A: 7654 ----
3E: ---- 32--
3E: --54 ----
3E: 76-- ----
32: ---- 32--
3D: -6-- ----
3D: 7--- ----
32: ---4 ----
32: --5- ----
32: -6-- ----
32: 7--- ----
3E: ---- ---0
3E: ---- --1-
2A: 60 bits
34: 64 bits
08: 20 bits
08: 18 bits
26: 32 bits
32: 10 bits
DEVICE OPTIONS
ENCODER2 OPTIONS (SHIFT = 1)
16
:Bits
Encoder Key
Encoder Seed Value
Encoder Synchronization Counter (CNTSEL=1)
Encoder Synchronization Counter (CNTSEL=0) plus overflow
Encoder Serial Number
Encoder Discrimination value
Transmission Modulation
Format
Header Select
Extended Serial Number
Queue counter Enable
START/STOP Pulse Enable
Low Voltage LED Blink
LED On Time Select
Limited Seed
Seed Mode
Seed Button Code
Time Before Seed Code word
Transmission Baud Rate
Select
Guard Time Select
(1)
(1)
Preliminary
(1)
Description
(1)
Disable = 0
Disable = 0
Disable = 0
28 bits = 0
50 ms = 0
Never = 0
User = 0
4 T
Value
Value
Value
Value
(1)
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
E
= 0
2
2
2
2
Production = 1
Manchester
100 ms = 1
Enable = 1
Enable = 1
Enable = 1
32 bits = 1
Time (ms)
10 T
Once = 1
Time (s)
Format
VPWM
T
PWM
102.4
PPM
E
2 T
51.2
100
200
400
800
0.0
0.8
1.6
3.2
6.4
( s)
E
E
= 1
HCS370
3.2,
3.2.1
3.2, 3.2.2
4.1
4.1
3.2
5.6
5.3
3.3
4.1
4.1, 5.2
DS41111D-page 9
3.2.1
3.3
3.2,
4.1
5.3
3.3
3.3
3.3
Reference
Section
3.2.1