LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 450
![IC ARM7 MCU LCD 208-LQFP](/photos/12/13/121391/208-lqfp_sot459-1_pkg_sml.jpg)
LPC2470FBD208,551
Manufacturer Part Number
LPC2470FBD208,551
Description
IC ARM7 MCU LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets
1.OM11077.pdf
(792 pages)
2.LPC2470FET208551.pdf
(89 pages)
3.LPC2470FET208551.pdf
(91 pages)
Specifications of LPC2470FBD208,551
Package / Case
208-LQFP
Core Processor
ARM7
Core Size
16/32-Bit
Speed
72MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Type
ROMless
Ram Size
98K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC24
Core
ARM7TDMI-S
Data Bus Width
16 bit, 32 bit
Data Ram Size
98 KB
Interface Type
CAN/I2C/I2S/SPI/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB2470U
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Package
208LQFP
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4361-5
935284068551
LPC2470FBD208-S
935284068551
LPC2470FBD208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2470FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10237_4
User manual
Table 402. UART1 Interrupt Identification Register (U1IIR - address 0xE001 0008, Read Only)
Bit U1IIR[9:8] are set by the auto-baud function and signal a time-out or end of auto-baud
condition. The auto-baud interrupt conditions are cleared by setting the corresponding
Clear bits in the Auto-baud Control Register.
If the IntStatus bit is 1 no interrupt is pending and the IntId bits will be zero. If the IntStatus
is 0, a non auto-baud interrupt is pending in which case the IntId bits identify the type of
interrupt and handling as described in
interrupt handler routine can determine the cause of the interrupt and how to clear the
active interrupt. The U1IIR must be read in order to clear the interrupt prior to exiting the
Interrupt Service Routine.
The UART1 RLS interrupt (U1IIR[3:1] = 011) is the highest priority interrupt and is set
whenever any one of four error conditions occur on the UART1RX input: overrun error
(OE), parity error (PE), framing error (FE) and break interrupt (BI). The UART1 Rx error
condition that set the interrupt can be observed via U1LSR[4:1]. The interrupt is cleared
upon an U1LSR read.
The UART1 RDA interrupt (U1IIR[3:1] = 010) shares the second level priority with the CTI
interrupt (U1IIR[3:1] = 110). The RDA is activated when the UART1 Rx FIFO reaches the
trigger level defined in U1FCR7:6 and is reset when the UART1 Rx FIFO depth falls below
the trigger level. When the RDA interrupt goes active, the CPU can read a block of data
defined by the trigger level.
The CTI interrupt (U1IIR[3:1] = 110) is a second level interrupt and is set when the UART1
Rx FIFO contains at least one character and no UART1 Rx FIFO activity has occurred in
3.5 to 4.5 character times. Any UART1 Rx FIFO activity (read or write of UART1 RSR) will
clear the interrupt. This interrupt is intended to flush the UART1 RBR after a message has
been received that is not a multiple of the trigger level size. For example, if a peripheral
Bit
3:1
5:4
7:6
8
9
31:10 -
Symbol
IntId
-
FIFO Enable
ABEOInt
ABTOInt
bit description
Value Description
011
010
110
001
000
Rev. 04 — 26 August 2009
Interrupt identification. U1IER[3:1] identifies an interrupt
corresponding to the UART1 Rx FIFO. All other
combinations of U1IER[3:1] not listed above are reserved
(100,101,111).
1 - Receive Line Status (RLS).
2a - Receive Data Available (RDA).
2b - Character Time-out Indicator (CTI).
3 - THRE Interrupt.
4 - Modem Interrupt.
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
These bits are equivalent to U1FCR[0].
End of auto-baud interrupt. True if auto-baud has finished
successfully and interrupt is enabled.
Auto-baud time-out interrupt. True if auto-baud has timed
out and interrupt is enabled.
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
Table
17–403. Given the status of U1IIR[3:0], an
Chapter 17: LPC24XX UART1
UM10237
© NXP B.V. 2009. All rights reserved.
450 of 792
NA
Reset
Value
0
NA
0
0
0
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