as given by the Bluetooth
®
4.0 standard is used (compatibility mode to Bluetooth
®
LE
4.0 devices).
• The pin
can be used as a kind of flow control for the data transmission during
the peripheral only mode. By default the pin level is LOW. As soon as the 20ms timeout
was detected or too much data was received via UART, the pin switches to HIGH and
data transmission starts via Bluetooth
®
LE. The pin switches LOW again, as soon
as Bluetooth
®
LE data transmission has finished and the transmission of new data is
feasible again. In case the pin is HIGH, no more data is accepted on the UART.
Figure 10: Switch of the
pin when transmitting data
To use the signal on the
pin as flow control on the host controller side, we recommend
to use an OR gate to combine the
and
pins’ signals.
Proteus-III reference manual version 1.3
© August 2020
www.we-online.com/wireless-connectivity
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