MLX90132 Datasheet, PDF (21/44 Pages) Melexis Microelectronic Systems – 13.56MHz RFID / NFC Transceiver

MLX90132
13.56MHz RFID / NFC Transceiver
6.6.1 Support of extended frames
In reader mode it is possible to receive up to 528 bytes of frame data. The extended size is included in the
command code as follows:
7 ^ResultCode 0
1LL00000
7
Len
0
LLLLLLLL
7 ^{Data byte 0} 0
xxxxxxxx
LL LLLLLLLL
9 87
0
Number N of data bytes
Figure 10: Coding of Length of extended frames
Consequently, the ResultCode returned depends on the length of the decoded frame received by the
MLX90132.
Direction
MCU - device
Result Code
0x80
Length (LEN)
Effective length of received data
0 – 255 bytes
Comment
0xA0
256 – 511 bytes
0xC0
0x90
0xB0
0xD0
0x00 – 0xFF
512 – 528 bytes
0 – 255 bytes
256 – 511 bytes
512 – 528 bytes
In ISO/IEC14443A only in case of
none integer number of bytes
Table 16: Coding of Length of extended frames
3901090132
Rev. 009
Page 21 of 44
Jan-2014