LPC1759FBD80,551 NXP Semiconductors, LPC1759FBD80,551 Datasheet - Page 325
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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Table 297: UART1 FIFO Control Register (U1FCR - address 0x4001 0008) bit description
UM10360
User manual
Bit
0
1
2
3
5:4
7:6
31:8
Symbol
FIFO Enable
RX FIFO
Reset
TX FIFO
Reset
DMA Mode
Select
-
RX Trigger
Level
-
15.4.6.1 DMA Operation
15.4.6 UART1 FIFO Control Register (U1FCR - 0x4001 0008)
Value Description
0
1
0
1
0
1
00
01
10
11
The UART1 THRE interrupt (U1IIR[3:1] = 001) is a third level interrupt and is activated
when the UART1 THR FIFO is empty provided certain initialization conditions have been
met. These initialization conditions are intended to give the UART1 THR FIFO a chance to
fill up with data to eliminate many THRE interrupts from occurring at system start-up. The
initialization conditions implement a one character delay minus the stop bit whenever
THRE = 1 and there have not been at least two characters in the U1THR at one time
since the last THRE = 1 event. This delay is provided to give the CPU time to write data to
U1THR without a THRE interrupt to decode and service. A THRE interrupt is set
immediately if the UART1 THR FIFO has held two or more characters at one time and
currently, the U1THR is empty. The THRE interrupt is reset when a U1THR write occurs or
a read of the U1IIR occurs and the THRE is the highest interrupt (U1IIR[3:1] = 001).
It is the lowest priority interrupt and is activated whenever there is any state change on
modem inputs pins, DCD, DSR or CTS. In addition, a low to high transition on modem
input RI will generate a modem interrupt. The source of the modem interrupt can be
determined by examining U1MSR[3:0]. A U1MSR read will clear the modem interrupt.
The write-only U1FCR controls the operation of the UART1 RX and TX FIFOs.
The user can optionally operate the UART transmit and/or receive using DMA. The DMA
mode is determined by the DMA Mode Select bit in the FCR register. This bit only has an
affect when the FIFOs are enabled via the FIFO Enable bit in the FCR register.
UART1 FIFOs are disabled. Must not be used in the application.
Active high enable for both UART1 Rx and TX FIFOs and U1FCR[7:1] access.
This bit must be set for proper UART1 operation. Any transition on this bit will
automatically clear the UART1 FIFOs.
No impact on either of UART1 FIFOs.
Writing a logic 1 to U1FCR[1] will clear all bytes in UART1 Rx FIFO, reset the
pointer logic. This bit is self-clearing.
No impact on either of UART1 FIFOs.
Writing a logic 1 to U1FCR[2] will clear all bytes in UART1 TX FIFO, reset the
pointer logic. This bit is self-clearing.
When the FIFO enable bit (bit 0 of this register) is set, this bit selects the DMA
mode. See
Reserved, user software should not write ones to reserved bits. The value read
from a reserved bit is not defined.
These two bits determine how many receiver UART1 FIFO characters must be
written before an interrupt is activated.
Trigger level 0 (1 character or 0x01).
Trigger level 1 (4 characters or 0x04).
Trigger level 2 (8 characters or 0x08).
Trigger level 3 (14 characters or 0x0E).
Reserved, user software should not write ones to reserved bits.
Section
All information provided in this document is subject to legal disclaimers.
15.4.6.1.
Rev. 2 — 19 August 2010
Chapter 15: LPC17xx UART1
UM10360
© NXP B.V. 2010. All rights reserved.
Reset Value
0
0
0
0
NA
0
NA
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