LPC1810FET100,551 NXP Semiconductors, LPC1810FET100,551 Datasheet - Page 724
LPC1810FET100,551
Manufacturer Part Number
LPC1810FET100,551
Description
IC MCU 32BIT 136KB FLSH 100TFBGA
Manufacturer
NXP Semiconductors
Series
LPC18xxr
Datasheets
1.LPC1830FET256551.pdf
(87 pages)
2.LPC1810FET100551.pdf
(2 pages)
3.LPC1810FET100551.pdf
(1164 pages)
Specifications of LPC1810FET100,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
150MHz
Connectivity
CAN, EBI/EMI, I²C, Microwire, SPI, SSI, SSP, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
64
Program Memory Size
-
Program Memory Type
ROMless
Eeprom Size
-
Ram Size
136K x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TFBGA
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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32.5.10.1 Auto-baud
Table 675. Autobaud Control Register (ACR - addresses 0x4008 1020 (UART0), 0x400C 1020
The UART auto-baud function can be used to measure the incoming baud rate based on
the ”AT" protocol (Hayes command). If enabled the auto-baud feature will measure the bit
time of the receive data stream and set the divisor latch registers DLM and DLL
accordingly.
Auto-baud is started by setting the ACR Start bit. Auto-baud can be stopped by clearing
the ACR Start bit. The Start bit will clear once auto-baud has finished and reading the bit
will return the status of auto-baud (pending/finished).
Two auto-baud measuring modes are available which can be selected by the ACR Mode
bit. In Mode 0 the baud rate is measured on two subsequent falling edges of the UART Rx
pin (the falling edge of the start bit and the falling edge of the least significant bit). In Mode
1 the baud rate is measured between the falling edge and the subsequent rising edge of
the UART Rx pin (the length of the start bit).
The ACR AutoRestart bit can be used to automatically restart baud rate measurement if a
time-out occurs (the rate measurement counter overflows). If this bit is set, the rate
measurement will restart at the next falling edge of the UART Rx pin.
The auto-baud function can generate two interrupts.
Bit
2
7:3
8
9
31:10 -
•
•
The IIR ABTOInt interrupt will get set if the interrupt is enabled (IER ABToIntEn is set
and the auto-baud rate measurement counter overflows).
The IIR ABEOInt interrupt will get set if the interrupt is enabled (IER ABEOIntEn is set
and the auto-baud has completed successfully).
Symbol
AUTORESTART
-
ABEOINTCLR
ABTOINTCLR
(UART2), 0x400C 2020 (UART3)) bit description
All information provided in this document is subject to legal disclaimers.
Rev. 00.13 — 20 July 2011
Value Description
0
1
0
1
0
1
Restart bit.
No restart
Restart in case of time-out (counter restarts at next
UART Rx falling edge)
Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is not
defined.
End of auto-baud interrupt clear bit (write-only).
Writing a 0 has no impact.
Writing a 1 will clear the corresponding interrupt in the
IIR.
Auto-baud time-out interrupt clear bit (write-only).
Writing a 0 has no impact.
Writing a 1 will clear the corresponding interrupt in the
IIR.
Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is not
defined.
Chapter 32: LPC18xx USART0_2_3
UM10430
© NXP B.V. 2011. All rights reserved.
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value
0
0
0
0
0
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