OM25180FDKM Datasheet, PDF (26/149 Pages) NXP Semiconductors – High-performance multi-protocol full NFC Forum-compliant frontend

NXP Semiconductors
PN5180
High-performance multi-protocol full NFC Forum-compliant frontend
PN5180
Product data sheet
COMPANY PUBLIC
Table 18. SWITCH_MODE
Payload
Length
(byte)
Parameter
1
1...n
Return value -
Value/Description
Mode
Array of ‘n’ elements {Mode parameter}
1 byte Mode parameter: Number of total bytes depends on
selected mode
-
Description:
This instruction is used to switch the mode. It is only possible to switch from normal mode
to Standby, LPCD or Autocoll mode. Switching back to normal mode is not possible using
this instruction. The modes Standby, LPCD and Autocoll terminate on specific conditions.
Once a configured mode (Standby, LPCD, Autocoll) terminates, normal mode is entered
again.
To force an exit from Standby, LPCD or Autocoll mode to normal mode, the host controller
has to reset the PN5180.
Condition:
Parameter ‘mode’ has to be in the range from 0 to– 2, inclusive. Dependent on the
selected mode, different parameters have to be passed:
In case parameter ‘mode’ is set to 0 (Standby):
Field ‘Wake-up Control’ must contain a bit mask indicating the enabled wake-up sources
and if GPO shall be toggled. Field ‘Wake-up Counter Value’ must contain the value used
for the wake-up counter (= time PN5180 remains in standby). The value shall be in the
range from 1 – 2690, inclusive.
Table 19. Standby configuration
Parameter
Length (byte)
Wake-up Control
1
Wake-up Counter Value
2
Value/Description
Bit mask controlling the wake-up source to be
used and GPO handling.
Used value for wake-up counter in msecs.
Maximum supported value is 2690
Table 20. Standby wake-up counter configuration
b7 b6 b5 b4 b3 b2 b1 b1
000000
RFU
X
Wake-up on external RF field, if bit is set to
1b.
X Wake-up on wake-up counter expires, if bit is
set to 1b.
The field has to be present, even if wake-up counter is not defined as wake-up source. In
this case, the field ‘wake-up Counter value’ is ignored. No instructions must be sent while
being in this mode. Termination is indicated using an interrupt.
In case parameter ‘mode’ is set to 1 (LPCD):
All information provided in this document is subject to legal disclaimers.
Rev. 3.0 — 7 October 2016
240930
© NXP Semiconductors N.V. 2016. All rights reserved.
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