Divisor Latch MSB. Most significant byte of the baud rate divisor value. The full divisor is used to generate a baud rate from the fractional rate divider (DLAB =1).
DLMSB | The UARTn Divisor Latch MSB Register, along with the U0DLL register, determines the baud rate of the UARTn. |
RESERVED | Reserved. Read value is undefined, only zero should be written. |