LPC2468FET208,551 NXP Semiconductors, LPC2468FET208,551 Datasheet - Page 451
LPC2468FET208,551
Manufacturer Part Number
LPC2468FET208,551
Description
IC ARM7 MCU FLASH 512K 208TFBGA
Manufacturer
NXP Semiconductors
Series
LPC2400r
Specifications of LPC2468FET208,551
Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
208-TFBGA
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, POR, PWM, WDT
Number Of I /o
160
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/I2S/ISP/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
6
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, IRD-LPC2468-DEV, SAB-TFBGA208, KSK-LPC2468-PL
Development Tools By Supplier
OM10100
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Package
208TFBGA
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
622-1025 - KIT DEV IND REF DESIGN LPC2468622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4358 - DISPLAY QVGA TFT FOR OM10100568-4309 - BOARD EXTENSION LPCSTICK568-4308 - EVAL LPC-STICK WITH LPC2468MCB2400U - BOARD EVAL MCB2400 + ULINK2MCB2400 - BOARD EVAL FOR NXP LPC246X SER622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4262
935283234551
LPC2468FET208-S
935283234551
LPC2468FET208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2468FET208,551
Manufacturer:
NXP
Quantity:
6 174
Company:
Part Number:
LPC2468FET208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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UM10237_4
User manual
wished to send a 105 character message and the trigger level was 10 characters, the
CPU would receive 10 RDA interrupts resulting in the transfer of 100 characters and 1 to 5
CTI interrupts (depending on the service routine) resulting in the transfer of the remaining
5 characters.
Table 403. UART1 Interrupt Handling
[1]
[2]
[3]
[4]
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).
U1IIR[3:0]
value
0001
0110
0100
1100
0010
0000
Values "0000", “0011”, “0101”, “0111”, “1000”, “1001”, “1010”, “1011”,”1101”,”1110”,”1111” are reserved.
For details see
For details see
Read Only)”
For details see
and
Only)”
[1]
Section 17–4.2 “UART1 Transmitter Holding Register (U1THR - 0xE001 0000 when DLAB = 0, Write
Priority Interrupt
-
Highest RX Line
Second RX Data
Second Character
Third
Fourth
Section 17–4.5 “UART1 Interrupt Identification Register (U1IIR - 0xE001 0008, Read Only)”
Section 17–4.11 “UART1 Line Status Register (U1LSR - 0xE001 0014, Read Only)”
Section 17–4.1 “UART1 Receiver Buffer Register (U1RBR - 0xE001 0000, when DLAB = 0
Type
None
Status /
Error
Available
Time-out
indication
THRE
Modem
Status
Rev. 04 — 26 August 2009
Interrupt Source
None
OE
Rx data available or trigger level reached in FIFO
(U1FCR0=1)
Minimum of one character in the RX FIFO and no
character input or removed during a time period
depending on how many characters are in FIFO
and what the trigger level is set at (3.5 to 4.5
character times).
The exact time will be:
[(word length) × 7 - 2] × 8 + [(trigger level - number
of characters) × 8 + 1] RCLKs
THRE
CTS or DSR or RI or DCD
[2]
or PE
[2]
[2]
or FE
[2]
or BI
[2]
Chapter 17: LPC24XX UART1
UM10237
© NXP B.V. 2009. All rights reserved.
Interrupt
Reset
-
U1LSR
Read
U1RBR
Read
UART1
FIFO drops
below
trigger level
U1RBR
Read
U1IIR
Read
source of
interrupt) or
THR write
MSR Read
451 of 792
[2]
[3]
[3]
[4]
or
(if
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