Maxim Integrated 78M6631 - Manual (Page 18)

78M6631 Firmware Description Document UG_6631_078
18 Rev 2
4 Serial Communication and CLI
The serial communication with the 78M6631 takes place over a UART (UART0) interface. The default
settings for the UART of the 78M6631, as implemented in this firmware, are given below:
Baud Rate: 38400bps
Data Bits: 8
Parity: None
Stop Bits: 1
Flow Control: None
The host’s serial interface port is required to implement these settings on its UART. To verify
communication between the host and the 78M6631, the host must send a <CR> (carriage return) to the
78M6631. Communication is verified when the 78M6631 returns a > (greater than sign) known as the
command prompt. An example is given below:
The host sends the following to the 78M6631:
<CR>
The 78M6631 sends the following back to the host:
>
4.1 CLI Interface
The Command Line Interface (CLI) provides a simple ASCII interface to access input and output registers
and to invoke commands. The CLI interface connects to a HyperTerminal or any other terminal emulation
SW. The CLI interface can also be used to interface to a host processor.