- 您现在的位置：买卖IC网 > PDF目录371784 > HCS473SLQTP (Microchip Technology Inc.) Code Hopping Encoder and Transponder PDF资料下载
参数资料
| 型号： | HCS473SLQTP |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | Code Hopping Encoder and Transponder |
| 中文描述： | 跳码编码器和转发器 |
| 文件页数： | 29/68页 |
| 文件大小： | 1629K |
| 代理商： | HCS473SLQTP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页当前第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页
2002 Microchip Technology Inc.
Preliminary
DS40035C-page 27
HCS473
3.2.3.4
READ Command
The transponder reader follows the 3-bit READ com-
mand with one of eight possible 3-bit address options
indicating which 16-bit EEPROM word to retrieve
(Table 3-5) and a 2-bit CRC calculated over the com-
mand and address bits.
The HCS473 retrieves the data and returns the 16-bit
response by creating a 32-bit value containing two cop-
ies of the response (Figure 3-15).
RFRSP determines if the response will be transmitted
on the DATA pin. If enabled, the response will follow the
selected Encoder mode code hopping format with the
hopping code replaced with the 32-bit response. The
transmissions will contain a button code of ‘0000’.
LFRSP determines if the response will be transmitted
on the LC pins. The LC pin response will be the 32-bit
result, modulated PPM format.
If both RFRSP and LFRSP are enabled, the HCS473
will send the response on the DATA pin immediately fol-
lowed by the PPM response on the LC pins. Refer to
Section 3.2.1.7 for further response path details.
The following locations are available to read:
The 64-bit general purpose user EEPROM.
The 32-bit serial number. The serial number is
also transmitted in each code hopping transmis-
sion.
The16-bit device identifiers #1 and #2.
The next command must begin T
CMD
after the read
response.
FIGURE 3-15:
READ SEQUENCE (RF RESPONSE EXAMPLE)
T
SF
ACK
CMD
ADR
CRC
T
CMD
‘100
2
’
3 bits 2 bits
T
READ
RESPONSE
‘
‘
‘
b
b
L
M
b
Address
Command
M
L
C
C
CRC
T
FINH
P
H
R
(
F
T
READ
RF Response
(DATA Pin)
Inductive In
(LC Pins)
RF Response (RFRSP=1)
Wake Sequence
or
Previous Command
Response
Optional Next
Command
T
CMD
b
b
b
Next
Command
T
CMD
T
CMD
T
CMD
T
CMD
with consecutive command
or if waiting for LF response
M
L
相关PDF资料 |
PDF描述 |
|---|---|
| HCS473SLROM | Code Hopping Encoder and Transponder |
| HCS473SLSQTP | Code Hopping Encoder and Transponder |
| HCS509 | KEELOQ Code Hopping Encoder Product Brief*(KeeLoq 译码器，是NTQ109和NTQ106的替代品) |
| HCS573KMSR | Radiation Hardened Octal Transparent Latch, Three-State |
| HCS573D | Low-Voltage, Dual Hot-Swap Controllers with Independent On/Off Control |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HCS473-SLQTP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473SLROM | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473-SLROM | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473SLSQTP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
| HCS473-SLSQTP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Code Hopping Encoder and Transponder |
发布紧急采购，3分钟左右您将得到回复。