HCS370SL MICROCHIP [Microchip Technology], HCS370SL Datasheet - Page 8

• Manufacturer Part Number: HCS370SL
• Description: KEELOQ Code Hopping Encoder
• Manufacturer: MICROCHIP [Microchip Technology]

HCS370
3.0
A summary of the HCS370 EEPROM organization is
shown in the three tables below. The address column
shows the starting address of the option, and its length
or bit position. Options larger than 8 bits are stored
with the Most Significant bits at the given address.
Enough consecutive 8-bit blocks are reserved for the
TABLE 3-1:
DS41111D-page 8
KEY1
SEED1
SYNC1
SER1
DISC1
MSEL1
HSEL1
XSER1
QUEN1
STEN1
LEDBL1
LEDOS1
SDLM1
SDMD1
SDBT1
SDTM1
BSEL1
GSEL1
Note 1: All Timing values vary ±10%.
Symbol
EEPROM ORGANIZATION
Address
14: 7654 ----
1C: ---- 32--
3C: ---- 32--
3C: --54 ----
3C: 76-- ----
1C: ---4 ----
1C: --5- ----
1C: -6-- ----
1C: 7--- ----
3C: ---- ---0
3C: ---- --1-
3F: -6-- ----
3F: 7--- ----
1E: 64 bits
1C: 10 bits
14: 60 bits
00: 20 bits
00: 18 bits
10: 32 bits
ENCODER1 OPTIONS (SHIFT = 0)
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
Description
(1)
(1)
entire option size. Options such as SEED1, which
have a length that is not an exact multiple of 8 bits, is
stored right justified in the reserved space. Additional
smaller options such as SDBT1 may be stored in the
same address as the Most Significant bits.
Disable = 0
Disable = 0
Disable = 0
28 bits = 0
Never = 0
50 ms = 0
User = 0
4
(1)
Value
Value
Value
Value
T
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
Once = 1
Time (s)
Format
T
VPWM
PWM
102.4
PPM
E
2 T
51.2
100
200
400
800
T
0.0
0.8
1.6
3.2
6.4
2002 Microchip Technology Inc.
E
( s)
E
= 1
3.2.2
3.3
3.2, 3.2.1
3.2.2
3.2, 3.2.1
4.1
4.1
3.2
5.6
4.1
5.3
5.3
3.3
3.3
3.3
3.3
4.1
4.1, 5.2
Reference
Section