Functional Description
Table 19-20. UART/IrDA/CIR Register Access Mode Overview (continued)
Address
Registers
Offset
Configuration Mode A
Configuration Mode B
Operational Mode
Read
Write
Read
Write
Read
Write
0x014
UART_LSR
–
UART_XON2_ADD
UART_XON2_AD
UART_LSR
–
R2
DR2
0x018
UART_MSR
UART_TCR
(2)
UART_TCR
UART_TCR
UART_MSR
UART_TCR
(2)
(1)
/UART_TCR
(2)
/UART_XOFF1
(3)
(2)
/UART_XOFF1
(1)
/UART_TCR
(2)
(2)
(3)
0x01C
UART_SPR
UART_SPR
UART_TLR
UART_TLR
UART_SPR
UART_SPR
(1)
/UART_TLR
(1)
/UART_TLR
(2)
(2)
/UART_XOFF2
(3)
(2)
/UART_XOFF2
(1)
/UART_TLR
(2)
(1)
/UART_TLR
(2)
(3)
(2)
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
0x038
UART_UASR
–
UART_UASR
–
UART_BLR
UART_BLR
0x03C
–
–
–
–
UART_ACREG
UART_ACREG
0x040
UART_SCR
UART_SCR
UART_SCR
UART_SCR
UART_SCR
UART_SCR
0x044
UART_SSR
–
UART_SSR
–
UART_SSR
–
0x048
–
–
–
–
UART_EBLR
UART_EBLR
0x050
UART_MVR
–
UART_MVR
–
UART_MVR
–
0x054
UART_SYSC
UART_SYSC
UART_SYSC
UART_SYSC
UART_SYSC
UART_SYSC
0x058
UART_SYSS
–
UART_SYSS
–
UART_SYSS
–
0x05C
UART_WER
UART_WER
UART_WER
UART_WER
UART_WER
UART_WER
0x060
UART_CFPS
UART_CFPS
UART_CFPS
UART_CFPS
UART_CFPS
UART_CFPS
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
(1)
MSR_SPR mode is active (see
, Register Access Submode)
(2)
TCR_TLR mode is active (see
, Register Access Submode)
(3)
XOFF mode is active (see
, Register Access Submode)
19.3.7.2 UART/IrDA (SIR, MIR, FIR)/CIR Mode Selection
To select a mode, set the UARTi.UART_MDR1[2:0] MODESELECT bit field (see
3469
SPRUH73H – October 2011 – Revised April 2013
Universal Asynchronous Receiver/Transmitter (UART)
Copyright © 2011–2013, Texas Instruments Incorporated