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HCS410 Datasheet(PDF) 5 Page - Microchip Technology

No. de pieza HCS410
Descripción Electrónicos  Memory Programming Specification
PDF  28 Pages
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HCS410 Datasheet(HTML) 5 Page - Microchip Technology

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 2004 Microchip Technology Inc.
Preliminary
DS41256A-page 5
HCSXXX
2.0
MEMORY MAPPING
The program memory maps for KEELOQ products begin
at 0x000 and extend as shown in the tables that follow.
As a device is being programmed, the address counter
automatically increments to the next word location after
receiving a data word. The memory maps for all
KEELOQ encoders and transponders were designed so
that each word is 16 bits wide. Decoder memory maps
are 8 bits wide.
2.1
Encoder Memory Maps
TABLE 2-1:
HCS200 12 X 16-BIT EEPROM MEMORY MAP
TABLE 2-2:
HCS201 12 X 16-BIT EEPROM MEMORY MAP
Word Address
Mnemonic
Description
0x00
KEY_0
Word 0 (LSb's) of 64-bit crypt key
0x01
KEY_1
Word 1 of 64-bit crypt key
0x02
KEY_2
Word 2 of 64-bit crypt key
0x03
KEY_3
Word 3 (MSb's) of 64-bit crypt key
0x04
SYNC
16-bit synchronization value
0x05
Reserved
Set to 0x0000
0x06
SER_0
Word 0 (LSb's) of 32-bit serial number
0x07
SER_1
Word 1 (MSb's) of 32-bit serial number
0x08
SEED_0
Word 0 (LSb's) of 32-bit seed value
0x09
SEED_1
Word 1 (MSb's) of 32-bit seed value
0x0A
Reserved
Set to 0x0000
0x0B
CONFIG
Configuration Word
Word Address
Mnemonic
Description
0x00
KEY_0
Word 0 (LSb's) of 64-bit crypt key
0x01
KEY_1
Word 1 of 64-bit crypt key
0x02
KEY_2
Word 2 of 64-bit crypt key
0x03
KEY_3
Word 3 (MSb's) of 64-bit crypt key
0x04
SYNC
16-bit synchronization value
0x05
Reserved
Set to 0x0000
0x06
SER_0
Word 0 (LSb's) of 32-bit serial number
0x07
SER_1
Word 1 (MSb's) of 32-bit serial number
0x08
SEED_0
Word 0 (LSb's) of 32-bit seed value
0x09
SEED_1
Word 1 (MSb's) of 32-bit seed value
0x0A
DISC
Discrimination Word
0x0B
CONFIG
Configuration Word



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