Data Sheet

FMB110 Datasheet Ver.1.0
-16-
open-drain LED outputs multiplexed with AIOs. Any PIOs can also be mapped into LED output by firmware.
3.7 Serial Interfaces
3.7.1 UART
The module has a standard UART serial interface that provides a simple mechanism for communicating
using RS232 protocol. The UART interface multiplexes with PIOs and other functions. Hardware flow
control is optional.
Table 15 : Possible UART Settings
3.7.2 USB
The module has a full-speed (12 Mbps) USB interface for communicating with other compatible digital
devices. The USB interface on FMB110 acts as a USB peripheral, responding to requests from a master
host controller.
FMB110 contains internal USB termination resistors and requires no external resistors.
FMB110 supports the Universal Serial Bus Specification, Revision v2.0 (USB v2.0 Specification), supports
USB standard charger detection, and fully supports the USB Battery Charging Specification v1.2.
With special firmware FMB110 also supports USB HID/CDC and audio function.
3.7.3 I
2
C
Any two PIOs can be used to form a master I
2
C interface. It is compliant with the Fast-mode UM10204 I
2
C-
bus specification.
3.7.4 SPI Interface
Any four PIOs can be used to form a master SPI interface. The maximum frequency is 16MHz. Firmware
can be customized to connect with variable peripherals.
Parameter
Possible Values
Baud Rate
Minimum
2400 baud (≤2%Error)
19200 baud (≤1%Error)
Maximum
4M baud (≤1%Error)
Flow control
RTS/CTS or None
Parity
None, Odd or Even
Number of Stop Bits
1 or 2
Bits per Byte
8