RX95HF Datasheet, PDF (26/44 Pages) STMicroelectronics – Near field communication transceiver for tag emulation

Commands
RX95HF
Table 25. AC filter command description (Command <Len> = 0x00)
Direction
Data
Comments
Example
Host to
RX95HF
0D
<Len>
00
RX95HF to ⁰¹
Host
yy
RX95HF to ⁸²
Host
00
Command code
Length of data (0x00)
Result code
Length of data
Tag Emulator state
Error code
Length of data
If <Len> = 0x00, AC filter is deactivated
and response will return Tag Emulation
state.
>>>0x0D00 Deactivate AC Filter
AC filter is deactivated and response will
return Tag Emulation state.
<<<0x0001yy
where yy is the Tag Emulation state
(Table 28).
<<<0x8200
Invalid command length
Table 26. AC filter command description (Command <Len> = 0x01)
Direction
Data
Comments
Example
Host to
RX95HF
0D
<Len>
yy
Command code
Length of data (0x01)
Tag Emulator state
If <Len> = 0x01, AC Filter state will be
forced to yy state (Table 28).
>>>0x0D01yy Force new Tag
Emulation state (yy).
00
RX95HF to
Host
00
RX95HF to ⁸²
Host
00
Result code
Length of data
Error code
Length of data
If <Len> = 0x01, Tag Emulation state is
successfully set.
<<<0x0000
<<<0x8200
Invalid command length
Table 27. AC filter command description (Command <Len> = 0x02)
Direction
Data
Comments
Example
Host to
RX95HF
0D
<Len>
0000
00
RX95HF to
Host
01
yy
RX95HF to ⁸²
Host
00
Command code
Length of data (0x02)
ST Reserved
Result code
Length of data
Tag Emulator state
Error code
Length of data
If <Len> = 0x02, response will return
Tag Emulation state without de-
activating the AC filter.
>>>0x0D020000
If <Len> = 0x02, returns Tag Emulation
state (Table 28) without de-activating
the AC filter.
<<<0x0001yy
<<<0x8200
Invalid command length
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