
Functional Overview
95
August 2002 Revised August 2003
SPRS197B
Table 368. UART1 Registers
DSP WORD
ADDRESS
MPU BYTE
ADDRESS
MPU BYTE
ADDRESS
(VIA MPUI)
REGISTER
NAME
DESCRIPTION
ACCESS
WIDTH
ACCESS
TYPE
RESET
VALUE
0x00 8000h
FFFB:0000
E101:0000
UART1_RHR
UART1_THR
UART1_DLL§
UART1_IER
UART1_DLH§
UART1 receive holding register
8
R
Undefined
0x00 8000h
FFFB:0000
E101:0000
UART1 transmit holding register
8
W
Undefined
0x00 8000h
FFFB:0000
E101:0000
UART1 divisor latch low register
8
RW
00h
0x00 8001h
FFFB:0004
E101:0002
UART1 interrupt enable register
8
RW
00h
0x00 8001h
FFFB:0004
E101:0002
UART1 divisor latch high register
8
RW
00h
0x00 8002h
FFFB:0008
E101:0004
UART1_IIR
UART1 interrupt identification
register
8
R
01h
0x00 8002h
FFFB:0008
E101:0004
UART1_FCR
UART1 FIFO control register
8
W
00h
0x00 8002h
FFFB:0008
E101:0004
UART1_EFR§
UART1 enhanced
feature register
8
RW
00h
0x00 8003h
FFFB:000C
E101:0006
UART1_LCR
UART1_MCR
UART1_XON1§
UART1_LSR
UART1_XON2§
UART1_MSR
UART1 line control register
8
RW
00h
0x00 8004h
FFFB:0010
E101:0008
UART1 modem control register
8
RW
00h
0x00 8004h
FFFB:0010
E101:0008
UART1 XON1 register
8
RW
00h
0x00 8005h
FFFB:0014
E101:000A
UART1 mode register
8
R
60h
0x00 8005h
FFFB:0014
E101:000A
UART1 XON2 register
8
RW
00h
0x00 8006h
FFFB:0018
E101:000C
UART1 modem status register
8
R
Undefined
0x00 8006h
FFFB:0018
E101:000C
UART1_TCR#
UART1 transmission
control register
8
RW
0Fh
0x00 8006h
FFFB:0018
E101:000C
UART1_XOFF1§
UART1_SPR
UART1_TLR#
UART1_XOFF2§
UART1 XOFF1 register
8
RW
00h
0x00 8007h
FFFB:001C
E101:000E
UART1 scratchpad register
8
RW
00h
0x00 8007h
FFFB:001C
E101:000E
UART1 trigger level register
8
RW
00h
0x00 8007h
FFFB:001C
E101:000E
UART1 XOFF2 register
8
RW
00h
0x00 8008h
FFFB:0020
E101:0010
UART1_MDR1
UART1 mode definition
1 register
8
RW
07h
0x00 8009h
0x00 800Dh
FFFB:0024
FFFB:0034
Reserved
0x00 800Eh
FFFB:0038
E101:001C
UART1_UASR§
UART1 autobauding
status register
8
R
00h
0x00 800Fh
FFFB:003C
Reserved
0x00 8010h
FFFB:0040
E101:0020
UART1_SCR
UART1 supplementary
control register
8
RW
00h
0x00 8011h
FFFB:0044
E101:0022
UART1_SSR
UART1 supplementary
status register
8
R
00h
0x00 8012h
FFFB:0048
Reserved
0x00 8013h
FFFB:004C
E101:0026
UART1_OSC_
12M_SEL
UART1 12-/13-MHz oscillator
select register
8
W
00h
0x00 8014h
Register is accessible when LCR[7] = 0 (normal operating mode)
Register is accessible when LCR[7] = 1 and LCR[7:0]
§Register is accessible when LCR[7] = 0BFh
Register is write accessible when EFR[4] = 1
#Register is accessible when EFR[4] = 1 and MCR[6] = 1
FFFB:0050
E101:0028
UART1_MVR
UART1 module version register
8
R
0BFh