Microchip Technology megaAVR 0 Series Manual page 299

22.5.1 Receiver Data Register Low Byte
Name: RXDATAL
Offset: 0x00
Reset: 0x00
Property: R
Reading the USARTn.RXDATAL Register will return the contents of the Receive Data Buffer register
(RXB).
The receive buffer consists of a two-level FIFO. The FIFO and the corresponding flags in the high byte of
RXDATA will change state whenever the receive buffer is accessed (read). If CHSIZE in USARTn.CTRLC
is set to 9BIT Low byte first, read USARTn.RXDATAL before USARTn.RXDATAH. Otherwise, always read
USARTn.RXDATAH before USARTn.RXDATAL in order to get the correct flags.
Bit 7
Access R
Reset 0
Bits 7:0 – DATA[7:0] Receiver Data Register
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2018 Microchip Technology Inc.
Universal Synchronous and Asynchronous Recei...
6 5
R R
0 0
4 3
DATA[7:0]
R R
0 0
Datasheet Preliminary
®
megaAVR 0-Series
2 1
R R
0 0
DS40002015A-page 299
0
R
0