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Functional Description
Table 19-22. UART Mode Register Overview
(1) (2)
(continued)
Address Registers
Offset
Configuration Mode A Configuration Mode B Operational Mode
Read Write Read Write Read Write
0x05C UART_WER UART_WER UART_WER UART_WER UART_WER UART_WER
0x060 – – – – – –
0x064 UART_RXFIFO UART_RXFIFO_ UART_RXFIFO_LVL UART_RXFIFO_L UART_RXFIFO_LV UART_RXFIFO
_LVL LVL VL L _LVL
0x068 UART_TXFIFO UART_TXFIFO_ UART_TXFIFO_LVL UART_TXFIFO_L UART_TXFIFO_LV UART_TXFIFO
_LVL LVL VL L _LVL
0x06C UART_IER2 UART_IER2 UART_IER2 UART_IER2 UART_IER2 UART_IER2
0x070 UART_ISR2 UART_ISR2 UART_ISR2 UART_ISR2 UART_ISR2 UART_ISR2
0x074 UART_FREQ_ UART_FREQ_S UART_FREQ_SEL UART_FREQ_SE UART_FREQ_SEL UART_FREQ_
SEL EL L SEL
0x080 UART_MDR3 UART_MDR3 UART_MDR3 UART_MDR3 UART_MDR3 UART_MDR3
0x084 UART_TX_DM UART_TX_DMA UART_TX_DMA_TH UART_TX_DMA_ UART_TX_DMA_T UART_TX_DM
A_THRESHOL _THRESHOLD RESHOLD THRESHOLD HRESHOLD A_THRESHOL
D D
19.3.7.2.2 Registers Available for the IrDA Function
Only the registers listed in Table 19-23 are used for the IrDA function.
Table 19-23. IrDA Mode Register Overview
(1) (2)
Address Registers
Offset
Configuration Mode A Configuration Mode B Operational Mode
Read Write Read Write Read Write
0x000 UART_DLL UART_DLL UART_DLL UART_DLL UART_RHR UART_THR
0x004 UART_DLH UART_DLH UART_DLH UART_DLH UART_IER(IrDA) UART_IER(IrD
A)
0x008 UART_IIR UART_FCR UART_EFR[4] UART_EFR[4] UART_IIR(IrDA) UART_FCR(Ir
DA)
0x00C UART_LCR[7] UART_LCR[7] UART_LCR[7] UART_LCR[7] UART_LCR[7] UART_LCR[7]
0x010 – – UART_XON1_ADD UART_XON1_AD – –
R1 DR1
0x014 UART_LSR(IrD – UART_XON2_ADD UART_XON2_AD UART_LSR(IrDA) –
A ) R2 DR2
0x018 UART_MSR/U UART_TCR UART_TCR UART_TCR UART_MSR/UART UART_TCR
ART_TCR _TCR
0x01C UART_TLR/UA UART_TLR/UA UART_TLR UART_TLR UART_TLR/UART_ UART_TLR/UA
RT_SPR RT_SPR SPR RT_SPR
0x020 UART_MDR1 UART_MDR1 UART_MDR1 UART_MDR1 UART_MDR1 UART_MDR1
0x024 UART_MDR2 UART_MDR2 UART_MDR2 UART_MDR2 UART_MDR2 UART_MDR2
0x028 UART_SFLSR UART_TXFLL UART_SFLSR UART_TXFLL UART_SFLSR UART_TXFLL
0x02C UART_RESUM UART_TXFLH UART_RESUME UART_TXFLH UART_RESUME UART_TXFLH
E
0x030 UART_SFREG UART_RXFLL UART_SFREGL UART_RXFLL UART_SFREGL UART_RXFLL
L
0x034 UART_SFREG UART_RXFLH UART_SFREGH UART_RXFLH UART_SFREGH UART_RXFLH
H
(1)
REGISTER_NAME(UART) notation indicates that the register exists for other functions (IrDA or CIR), but fields have different
meanings for other functions.
(2)
REGISTER_NAME[m:n] notation indicates that only register bits numbered m to n apply to the UART function.
3471
SPRUH73H–October 2011–Revised April 2013 Universal Asynchronous Receiver/Transmitter (UART)
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