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ABOV Semiconductor Co., Ltd.
UARTnDR (UARTn Data Register) : 4065H/406DH/4075H (XSFR), Where n = 2, 3 and 4
Initial value : 00H
The UARTn Transmit Buffer and Receive Buffer share the same I/O address with this
DATA register. The Transmit Data Buffer is the destination for data written to the
UARTnDR register. Reading the UARTnDR register returns the contents of the Receive
Buffer.
Write this register only when the UDREn flag is set.
UARTnCR1 (UARTn Control Register 1) : 4060H/4068H/4070H (XSFR),, Where n = 2, 3 and 4
Initial value : 00H
Selects Parity Generation and Check methods
Selects the Length of Data Bits in Frame