Register Description - Philips LPC2119 User Manual

Philips Semiconductors
ARM-based Microcontroller

REGISTER DESCRIPTION

Table 87: UART1 Register Map
Address Name Description
0xE0010000
U1RBR
DLAB = 0
0xE0010000
U1THR
DLAB = 0
0xE0010004
U1IER
DLAB = 0
Interrupt ID
0xE0010008 U1IIR
0xE0010008 U1FCR
Line Control
0xE001000C U1LCR
0xE0010010 U1MCR
Line Status
0xE0010014 U1LSR
0xE0010018 U1MSR
Scratch Pad
0xE001001C U1SCR
0xE0010000 Divisor Latch
U1DLL
DLAB = 1
0xE0010004 Divisor Latch
U1DLM
DLAB = 1
*Reset Value refers to the data stored in used bits only. It does not include reserved bits content.
UART1 contains twelve 8-bit registers as shown in Table 87. The Divisor Latch Access Bit (DLAB) is contained in U1LCR7 and
enables access to the Divisor Latches.
UART1
BIT 7 BIT 6
Receiver
Buffer MSB
Register
Transmit
Holding MSB
Register
Interrupt
Enable 0 0
Register
FIFOs Enabled
Register
FIFO
Control Rx Trigger
Register
Register
Modem
Control 0 0
Register
Rx
FIFO TEMT
Register
Error
Modem
Status DCD RI
Register
MSB
Register
MSB
LSB
MSB
MSB
BIT 5 BIT 4 BIT 3
READ DATA
WRITE DATA
0 0
0 0 IIR3
Reserved -
Loop
0 0
Back
THRE BI FE
Trailing
Delta
DSR CTS
DCD
123
Preliminary User Manual
LPC2119/2129/2292/2294
BIT 2 BIT 1 BIT 0 Access
LSB
LSB
IIR2 IIR1 IIR0
Word Length
Select
0 RTS DTR
PE OE DR
Delta Delta
Edge
DSR CTS
RI
LSB
LSB
LSB
January 08, 2004
Reset
Value*
un-
RO
defined
WO NA
R/W 0
RO 0x01
WO 0
R/W 0
R/W 0
RO 0x60
RO 0
R/W 0
R/W 0
R/W 0