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HCS500T-I/ST датащи(PDF) 11 Page - Microchip Technology

номер детали HCS500T-I/ST
подробное описание детали  KEELOQ짰 Code Hopping Decoder
PDF  42 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

HCS500T-I/ST датащи(HTML) 11 Page - Microchip Technology

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 2001-2015 Microchip Technology Inc.
DS40000153E-page 11
HCS500
4.2.3
COMMAND ACTIVATION TIMES
The command activation time (Table 4-1) is defined as
the maximum time the microcontroller has to wait for a
response from the decoder. The decoder will abort and
service the command request. The response time
depends on the state of the decoder when the
Command mode is requested.
4.2.4
DECODER COMMANDS
The command byte specifies the operation required by
the controlling microcontroller. Table 4-2 lists the
commands.
TABLE 4-1:
COMMAND ACTIVATION TIMES
Decoder State
Min
Max
While receiving transmissions
—
2.5 ms BPWMAX = 2.7 ms
During the validation of a received transmission
—
3 ms
During the update of the sync counters
—
40 ms
During learn
—
170 ms
Note:
*These parameters are characterized but not tested.
TABLE 4-2:
DECODER COMMANDS
Instruction
Command Byte
Operation
READ
F016
Read a byte from user EEPROM
WRITE
E116
Write a byte to user EEPROM
ACTIVATE_LRN
D216
Activate a learn sequence on the decoder
ERASE_ALL
C316
Activate an erase all function on the decoder
PROGRAM
B416
Program manufacturer’s code and Configuration byte



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