AT88SC0104CRF(2008) 데이터 시트보기 (PDF) - Atmel Corporation
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AT88SC0104CRF Datasheet PDF : 108 Pages
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Table 4-3.
AFI
High Bits
$0
“X”
“X”
$0
AFI matching criteria for polling commands received by the PICC.
AFI
Low Bits
REQB/WUPB Polling produces a
PICC response from:
$0
All Families and sub-families
$0
All sub-families of Family “X”
“Y”
Only sub-family “Y” of Family “X”
“Y”
Proprietary sub-family “Y” Only
“Y” = $1 to $F
“X” = $1 to $F
PARAM: The PARAM byte is used to send two parameters to the PICC. The parameter “N”,
which assigns the number of anticollision slots, and the REQB / WUPB selection bit.
Figure 4-1. Coding of the PARAM byte in the REQB/WUPB command.
Bit 7
0
Bit 6
0
Bit 5
0
Bit 4
0
Bit 3
RW
Bit 2
Bit 1
N
Bit 0
Table 4-4.
Bit 2
0
0
0
0
1
1
1
Coding of “N”, the number of anticollision slots, in the PARAM byte.
Bit 1
Bit 0
N
0
0
1
0
1
2
1
0
4
1
1
8
0
0
16
0
1
RFU
1
x
RFU
Table 4-5.
Bit 3
0
1
Coding of the REQB / WUPB selection bit in the PARAM byte.
Command
REQB
WUPB
CRC: Communication error detection bytes.
10 AT88SC0104/0204/0404/0808/1616/3216/6416CRF
5276A–RFID–07/08
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