LPC1113FHN33/203,5 NXP Semiconductors, LPC1113FHN33/203,5 Datasheet - Page 205
LPC1113FHN33/203,5
Manufacturer Part Number
LPC1113FHN33/203,5
Description
ARM Microcontrollers - MCU Cortex-M0 24 kB flash up to 8kB SRAM
Manufacturer
NXP Semiconductors
Datasheet
1.LPC1113FHN333035.pdf
(538 pages)
Specifications of LPC1113FHN33/203,5
Rohs
yes
Core
ARM Cortex M0
Processor Series
LPC1113
Data Bus Width
32 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
24 KB
Data Ram Size
4 KB
On-chip Adc
Yes
Operating Supply Voltage
1.8 V to 3.6 V
Operating Temperature Range
- 65 C to + 150 C
Package / Case
HVQFN-33
Mounting Style
SMD/SMT
Factory Pack Quantity
260
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NXP Semiconductors
UM10398
User manual
13.5.12 UART Auto-baud Control Register (U0ACR - 0x4000 8020)
13.5.13 Auto-baud
The UART Auto-baud Control Register (U0ACR) controls the process of measuring the
incoming clock/data rate for the baud rate generation and can be read and written at
user’s discretion.
Table 198. Auto baud Control Register (U0ACR - address 0x4000 8020) bit description
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 U0DLM and U0DLL
accordingly.
Auto-baud is started by setting the U0ACR Start bit. Auto-baud can be stopped by clearing
the U0ACR 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).
Bit
0
1
2
7:3
8
9
31:10 -
Symbol
START
MODE
AUTORESTART
-
ABEOINTCLR
ABTOINTCLR
All information provided in this document is subject to legal disclaimers.
Rev. 12 — 24 September 2012
Value
0
1
0
1
0
1
0
1
0
1
Description
Start bit. This bit is automatically cleared after
auto-baud completion.
Auto-baud stop (auto-baud is not running).
Auto-baud start (auto-baud is running). Auto-baud
run bit. This bit is automatically cleared after
auto-baud completion.
Auto-baud mode select
Mode 0.
Mode 1.
Restart enable
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 (write only
accessible)
Writing a 0 has no impact.
Writing a 1 will clear the corresponding interrupt in
the U0IIR.
Auto-baud time-out interrupt clear (write only
accessible)
Writing a 0 has no impact.
Writing a 1 will clear the corresponding interrupt in
the U0IIR.
Reserved, user software should not write ones to
reserved bits. The value read from a reserved bit is
not defined.
Chapter 13: LPC111x/LPC11Cxx UART
UM10398
© NXP B.V. 2012. All rights reserved.
205 of 538
Reset
value
0
0
0
0
0
0
0
0
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