Data Sheet

2.6 PTA Pins
If
an RF transceiver using the same 2.4 GHz band (e.g. Bluetooth) is located next to WGM160P, a Packet Transfer Arbitration (PTA)
interface can be used to avoid mutual interference. In this case, the PTA pins are connected to the other transceiver. The PTA interface
is highly programmable and can use 1, 2, 3, or 4 pins upon configuration. PTA signal names can vary by manufacturer, so the table
below shows their alternative names.
Table 2.5. WGM160P PTA Configuration
WGM160P Pin # WGM160P Pin Name Alternative Name
6 PTA_TX_CONF GRANT
7 PTA_RF_ACT REQUEST
13 PTA_STATUS PRIORITY
12 PTA_FREQ RHO
PTA interface configuration is achieved through software configuration. PTA operation will be detailed in an upcoming application note.
2.7 Multifunction Pins
The multifunction pins refer to the WGM160P pins directly connected to the embedded MCU, EFM32GG11.
2.7.1 Software Architecture Considerations
As
described in the data sheet, the WGM160P module has considerable flexibility regarding the configuration of MCU pins, but not all
software architectures support all functions.
2.7.1.1 Bootloader
All devices come preprogrammed with a UART bootloader. This bootloader resides in flash and can be erased if it is not needed. More
information about the bootloader protocol and usage can be found in AN0003: UART Bootloader. Application notes can be found on the
Silicon Labs website (www.silabs.com/32bit-appnotes) or within Simplicity Studio in the [Documentation] area.
WGM160P pin 44 (GG11 PF0) and pin 45 (GG11 PF1) provide the bootloader with TX and RX access, respectively.
2.7.1.2 Implementation with GG11 Open Software
Full flexibility can be achieved when using the source software based on the Full MAC driver provided by Silicon Labs. The configura-
tion of multifunction pins is accomplished within Simplicity Studio similar to the software development for the EFM32GG11. For more
details regarding these pins, refer to tables 6.2 and 6.3 of the WGM160P data sheet.
UG384: WGM160P Hardware Design User’s Guide
WGM160P Pin Description
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