LPC1759FBD80,551 NXP Semiconductors, LPC1759FBD80,551 Datasheet - Page 341
LPC1759FBD80,551
Manufacturer Part Number
LPC1759FBD80,551
Description
IC ARM CORTEX MCU 512K 80-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.LPC1751FBD80551.pdf
(74 pages)
2.LPC1767FBD100551.pdf
(2 pages)
3.LPC1767FBD100551.pdf
(840 pages)
Specifications of LPC1759FBD80,551
Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
80-LQFP
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
120MHz
Connectivity
CAN, I²C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
52
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 6x12b, 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
52
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
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 6 Channel
On-chip Dac
10 bit
Package
80LQFP
Device Core
ARM Cortex M3
Family Name
LPC17xx
Maximum Speed
120 MHz
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
568-4968
935290523551
935290523551
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Quantity
Price
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15.5 Architecture
UM10360
User manual
RS485/EIA-485 output inversion
The polarity of the direction control signal on the RTS (or DTR) pins can be reversed by
programming bit 5 in the U1RS485CTRL register. When this bit is set, the direction control
pin will be driven to logic 1 when the transmitter has data waiting to be sent. The direction
control pin will be driven to logic 0 after the last bit of data has been transmitted.
The architecture of the UART1 is shown below in the block diagram.
The APB interface provides a communications link between the CPU or host and the
UART1.
The UART1 receiver block, U1RX, monitors the serial input line, RXD1, for valid input.
The UART1 RX Shift Register (U1RSR) accepts valid characters via RXD1. After a valid
character is assembled in the U1RSR, it is passed to the UART1 RX Buffer Register FIFO
to await access by the CPU or host via the generic host interface.
The UART1 transmitter block, U1TX, accepts data written by the CPU or host and buffers
the data in the UART1 TX Holding Register FIFO (U1THR). The UART1 TX Shift Register
(U1TSR) reads the data stored in the U1THR and assembles the data to transmit via the
serial output pin, TXD1.
The UART1 Baud Rate Generator block, U1BRG, generates the timing enables used by
the UART1 TX block. The U1BRG clock input source is the APB clock (PCLK). The main
clock is divided down per the divisor specified in the U1DLL and U1DLM registers. This
divided down clock is the 16x oversample clock.
The modem interface contains registers U1MCR and U1MSR. This interface is
responsible for handshaking between a modem peripheral and the UART1.
The interrupt interface contains registers U1IER and U1IIR. The interrupt interface
receives several one clock wide enables from the U1TX and U1RX blocks.
Status information from the U1TX and U1RX is stored in the U1LSR. Control information
for the U1TX and U1RX is stored in the U1LCR.
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.
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