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| 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： | 33/68页 |
| 文件大小： | 1629K |
| 代理商： | HCS473SLQTP |
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2002 Microchip Technology Inc.
Preliminary
DS40035C-page 31
HCS473
Table 7-5 timing values are compensated only for
HCS473 internal filter delays. The transponder reader
designer must compensate communication timing
accordingly for the cumulative antenna delays.
Use LF Demodulator mode to see the effects of the
internal filters and the LC antennae, Section 3.2.1.2.
It must be clearly understood that the HCS473 core
does not see the LF field immediately upon the base
station turning it on, nor does it immediately detect its
removal. If the internal analog delay and cumulative
antenna delays are greater than a given low time, the
HCS473 will obviously never “see” the low.
FIGURE 3-19:
LF ACK RESPONSE ADJUSTMENTS (LFRSP=1)
T
AOACK
L
Command
M
CRC
M
L
Transport ACK
T
TPACK
Inductive
(LC Pins)
RF Response
(DATA Pin)
T
CMD
Present Transport Code Sequence
Inductive
(LC Pins)
L
M
Address
Command
M
L
CRC
T
WRT
Write ACK
16-Bit
Write Data
M
L
RF Response
(DATA Pin)
T
CMD
Write Sequence
L
Command
M
CRC
ACOL Off ACK
Inductive
(LC Pins)
RF Response
(DATA Pin)
T
CMD
32-Bit
Transport
Anticollision Off Sequence
T
FINH
T
FINH
T
FINH
Next
Command
T
CMD
Next
Command
T
CMD
Next
Command
T
CMD
5 LF
TE
5 LF
TE
5 LF
TE
T
CMD
T
CMD
T
CMD
Simultaneous
LF ACK
Simultaneous
LF ACK
Simultaneous
LF ACK
Transponder Select Sequence
L
Command
M
TID=0
12-Bit
VID
M
L
Transponder Select ACK
TID=1
TID=2
6 LF
TE
T
TSCMD
Next
Command
T
TSACK
Inductive
(LC Pins)
RF Response
(DATA Pin)
T
CMD
Simultaneous
LF ACK
M
L
M
L
M
L
5 LF
TE
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| HCS473SLROM | Code Hopping Encoder and Transponder |
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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 |
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