Dialog Semiconductor SMARTBOND TINY DA14531, Hardware User Manual

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UM-B-141
DA14531 SMARTBOND TINY™ MODULE Development
Kit Hardware User Manual
Target
User Manual Revision 1.1 11-05-2020
CFR0012 17 of 29
© 2020 Dialog Semiconductor
5.7 UART
Three modes of UART can be used: single wire UART, 2 wire-UART or full UART.
Table 4:
DA14531 SMARTBOND TINY™ MODULE DB UART Signals
Function
The signals
DA145xx DEVKT-P PRO-
MB
DA14531 SMARTBOND
TINY™ MODULE DB
J2 J1
DA14531 SMARTBOND
TINY™ MODULE
UTX 2-wire or Full UART Transmit P2_6 P0_4 P0_6
URX 2-wire or Full UART Receive P2_5 P0_5 P0_5
UCTS 2-wire or Full UART Clear to Send P2_8 P0_6 P0_8
URTS 2-wire or Full UART Request to Send P2_7 P0_7 P0_7
RxTx Single wire UART Receive and Transmit P2_5 P2_5 P0_5
Note 1 UART signals are directly mapped to J1 connector of DA145xx DEVKT-P PRO-MB: Rx, Tx, RTS and
CTS.
For enabling the different configurations check section 5.8.
5.8 GPIOs and pin assignment on
DA14531 SMARTBOND TINY™ MODULE
DB
The
DA14531 SMARTBOND TINY™ MODULE DB comes in with a pre-defined default configuration.
However, due to the low GPIO pin count, several functions are multiplexed and can be enabled as
needed.
On Table 5
DA14531 SMARTBOND TINY™ MODULE GPIOs use on the various functions can be
found. On the last column of the table users can check which of the functions are enabled by default
with the default hardware setup and which require some hardware modification by adding resistors.
Table 5: GPIO multiplexing on
DA14531 SMARTBOND TINY™ MODULE DB
DA14531
SMARTBOND
TINY™
MODULE
Signals
J1
connector
Daughterboard
Function
1
Function 2 Function 3
Comments for functions
supported
P0_0
SW3
(RESET
Button)
Default
MB2_0
RESET
RESET on
J2 JTAG
connector
Default Default
P0_2
MB2_2
SWCLK
SWCLK
JTAG
connector
(J2)
Default Default