
Functional Overview
128
December 2003 Revised March 2005
SPRS231D
Table 326. UART1 Registers
DSP WORD
ADDRESS
MPU BYTE
ADDRESS
REGISTER
NAME
DESCRIPTION
ACCESS
WIDTH
ACCESS
TYPE
RESET
VALUE
0x00 8000h
FFFB:0000
UART1_RHR
UART1 receive holding register
8
R
Undefined
0x00 8000h
FFFB:0000
UART1_THR
UART1 transmit holding register
8
W
Undefined
0x00 8000h
FFFB:0000
UART1_DLL
UART1 divisor latch low register
8
R/W
00h
0x00 8001h
FFFB:0004
UART1_IER
UART1 interrupt enable register
8
R/W
00h
0x00 8001h
FFFB:0004
UART1_DLH
UART1 divisor latch high register
8
R/W
00h
0x00 8002h
FFFB:0008
UART1_IIR
UART1 interrupt identification register
8
R
01h
0x00 8002h
FFFB:0008
UART1_FCR
UART1 FIFO control register
8
W
00h
0x00 8002h
FFFB:0008
UART1_EFR
UART1 enhanced feature register
8
R/W
00h
0x00 8003h
FFFB:000C
UART1_LCR
UART1 line control register
8
R/W
00h
0x00 8004h
FFFB:0010
UART1_MCR
UART1 modem control register
8
R/W
00h
0x00 8004h
FFFB:0010
UART1_XON1
UART1 XON1 register
8
R/W
00h
0x00 8005h
FFFB:0014
UART1_LSR
UART1 mode register
8
R
60h
0x00 8005h
FFFB:0014
UART1_XON2
UART1 XON2 register
8
R/W
00h
0x00 8006h
FFFB:0018
UART1_MSR
UART1 modem status register
8
R
Undefined
0x00 8006h
FFFB:0018
UART1_TCR
UART1 transmission control register
8
R/W
0Fh
0x00 8006h
FFFB:0018
UART1_XOFF1
UART1 XOFF1 register
8
R/W
00h
0x00 8007h
FFFB:001C
UART1_SPR
UART1 scratchpad register
8
R/W
00h
0x00 8007h
FFFB:001C
UART1_TLR
UART1 trigger level register
8
R/W
00h
0x00 8007h
FFFB:001C
UART1_XOFF2
UART1 XOFF2 register
8
R/W
00h
0x00 8008h
FFFB:0020
UART1_MDR1
UART1 mode definition 1 register
8
R/W
07h
0x00 8009h
FFFB:0024
UART1_MDR2
UART1 mode definition register 2
8
R/W
00h
0x00 800Ah
FFFB:0028
UART1_SFLSR
UART1 status FIFO line status register
8
R
00h
0x00 800Ah
FFFB:0028
UART1_TXFLL
UART1 transmit frame length low
8
W
00h
0x00 800Bh
FFFB:002C
UART1_RESUME
UART1 resume register
8
R
00h
0x00 800Bh
FFFB:002C
UART1_TXFLH
UART1 transmit frame length high
8
W
00h
0x00 800Ch
FFFB:0030
UART1_SFREGL
UART1 status FIFO low register
8
R
Undefined
0x00 800Ch
FFFB:0030
UART1_RXFLL
UART1 receive frame length low
8
W
00h
0x00 800Dh
FFFB:0034
UART1_SFREGH
UART1 status FIFO high register
8
R
Undefined
0x00 800Dh
FFFB:0034
UART1_RXFLH
UART1 receive frame length high
8
W
00h
0x00 800Eh
FFFB:0038
UART1_UASR
UART1 autobauding status register
8
R
00h
0x00 800Eh
FFFB:0038
UART1_BLR
UART1 BOF control register
8
R/W
40h
0x00 800Fh
FFFB:003C
UART1_ACREG
UART1 auxiliary control register
8
R/W
00h
0x00 8010h
FFFB:0040
UART1_SCR
UART1 supplementary control register
8
R/W
00h
0x00 8011h
FFFB:0044
UART1_SSR
UART1 supplementary status register
8
R
00h
0x00 8012h
FFFB:0048
UART1_EBLR
UART1 BOF length register
8
R/W
00h
0x00 8013h
FFFB:004C
Reserved
0x00 8014h
FFFB:0050
UART1_MVR
UART1 module version register
8
R
0x00 8015h
FFFB:0054
UART1_SYSC
UART1 system configuration register
8
R/W
00h
0x00 8016h
FFFB:0058
UART1_SYSS
UART1 system status register
8
R/W
00h
0x00 8017h
FFFB:005C
UART1_WER
UART1 wake-up enable register
8
R/W
7Fh