Data Sheet

FSC-BT958 Datasheet
Shenzhen Feasycom Technology Co., Ltd www.feasycom.com
-9-
4.5 Serial Interfaces
4.5.1 UART
FSC-BT958 provides one channels of Universal Asynchronous Receiver/Transmitters(UART)(Full-duplex asynchronous
communications). The UART Controller performs a serial-to-parallel conversion on data received from the peripheral
and a parallel-to-serial conversion on data transmitted from the CPU. Each UART Controller channel supports ten types
of interrupts.
This is a standard UART interface for communicating with other serial devices. The UART interface provides a simple
mechanism for communicating with other serial devices using the RS232 protocol.
When the module is connected to another digital device, UART_RX and UART_TX transfer data between the two
devices.
This module output is at 3.3V CMOS logic levels (tracks VCC). Level conversion must be added to interface with an
RS-232 level compliant interface.
Table 3: Possible UART Settings
Parameter
Possible Values
Baudrate
Minimum
1200 baud (≤2%Error)
Standard
115200bps(≤1%Error)
Maximum
921600bps(≤1%Error)
Flow control
Supports Automatic Flow Control (CTS and
RTS lines)
Parity
None, Odd or Even
Number of stop bits
1 /1.5/2
Bits per channel
5/6/7/8
When connecting the module to a host, please make sure to follow .
Module Host
TX RX
RX
TX
GND
GND
Figure 4: UART Connection