LPC1769FBD100,551 NXP Semiconductors, LPC1769FBD100,551 Datasheet - Page 330

• Manufacturer Part Number: LPC1769FBD100,551
• Description: IC ARM CORTEX MCU 512K 100-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC17xxr

Specifications of LPC1769FBD100,551

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 100-LQFP
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 120MHz
• Connectivity: CAN, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 70
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 8x12b, D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC17
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: Ethernet, USB, OTG, CAN
• Maximum Clock Frequency: 120 MHz
• Number Of Programmable I/os: 70
• Number Of Timers: 4
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• On-chip Dac: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4966; 935290522551

NXP Semiconductors
Table 301: UART1 Line Status Register (U1LSR - address 0x4001 0014) bit description
Table 302: UART1 Modem Status Register (U1MSR - address 0x4001 0018) bit description
UM10360
User manual
Bit
3
4
5
6
7
31:8
Bit
0
Symbol
Framing Error
(FE)
Break Interrupt
(BI)
Transmitter
Holding Register
Empty (THRE)
Transmitter
Empty (TEMT)
Error in RX FIFO
(RXFE)
-
Symbol
Delta CTS
15.4.11 UART1 Modem Status Register (U1MSR - 0x4001 0018)
The U1MSR is a read-only register that provides status information on the modem input
signals. U1MSR[3:0] is cleared on U1MSR read. Note that modem signals have no direct
effect on UART1 operation, they facilitate software implementation of modem signal
operations.
Value Description
Value Description
0
1
0
1
0
1
0
1
0
1
0
1
When the stop bit of a received character is a logic 0, a framing error occurs. An
U1LSR read clears U1LSR[3]. The time of the framing error detection is
dependent on U1FCR0. Upon detection of a framing error, the RX will attempt to
resynchronize to the data and assume that the bad stop bit is actually an early
start bit. However, it cannot be assumed that the next received byte will be correct
even if there is no Framing Error.
Note: A framing error is associated with the character at the top of the UART1
RBR FIFO.
Framing error status is inactive.
Framing error status is active.
When RXD1 is held in the spacing state (all zeroes) for one full character
transmission (start, data, parity, stop), a break interrupt occurs. Once the break
condition has been detected, the receiver goes idle until RXD1 goes to marking
state (all ones). An U1LSR read clears this status bit. The time of break detection
is dependent on U1FCR[0].
Note: The break interrupt is associated with the character at the top of the UART1
RBR FIFO.
Break interrupt status is inactive.
Break interrupt status is active.
THRE is set immediately upon detection of an empty UART1 THR and is cleared
on a U1THR write.
U1THR contains valid data.
U1THR is empty.
TEMT is set when both U1THR and U1TSR are empty; TEMT is cleared when
either the U1TSR or the U1THR contain valid data.
U1THR and/or the U1TSR contains valid data.
U1THR and the U1TSR are empty.
U1LSR[7] is set when a character with a RX error such as framing error, parity
error or break interrupt, is loaded into the U1RBR. This bit is cleared when the
U1LSR register is read and there are no subsequent errors in the UART1 FIFO.
U1RBR contains no UART1 RX errors or U1FCR[0]=0.
UART1 RBR contains at least one UART1 RX error.
Reserved, the value read from a reserved bit is not defined.
Set upon state change of input CTS. Cleared on an U1MSR read.
No change detected on modem input, CTS.
State change detected on modem input, CTS.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Chapter 15: LPC17xx UART1
UM10360
© NXP B.V. 2010. All rights reserved.
Reset Value
0
330 of 840
Reset
Value
0
0
1
1
0
NA