LPC2468FET208,551 NXP Semiconductors, LPC2468FET208,551 Datasheet - Page 719
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
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UM10237_4
User manual
5.3 Enabling a DMA channel
5.4 Disabling a DMA channel
5.5 Disabling a DMA channel without losing data in the FIFO
5.6 Setup a new DMA transfer
5.7 Disabling a DMA channel and losing data in the FIFO
5.8 Halting a DMA transfer
To enable the DMA channel set the Channel Enable bit in the relevant DMA channel
Configuration Register (
(DMACC0Configuration - 0xFFE0 4110 and DMACC1Configuration - 0xFFE0
Note: The channel must be fully initialized before it is enabled. Additionally, you must set
the Enable bit of the GPDMA before any channels are enabled.
You can disable a DMA channel in the following ways:
To disable a DMA channel without losing data in the FIFO:
To set up a new DMA transfer:
Clear the relevant Channel Enable bit in the relevant channel Configuration Register
(Section 32–6.2.6 “Channel Configuration Registers (DMACC0Configuration -
0xFFE0 4110 and DMACC1Configuration - 0xFFE0
one is in progress, completes and the channel is disabled. Any data in the FIFO is lost.
Set the Halt bit in the relevant DMA channel Configuration Register. The current source
request is serviced. Any further source DMA requests are ignored until the Halt bit is
cleared.
1. Set the Halt bit in the relevant channel Configuration Register
2. Poll the Active bit in the relevant channel Configuration Register until it reaches 0.
3. Clear the Channel Enable bit in the relevant channel Configuration Register.
1. If the channel is not set aside for the DMA transaction:
2. Program the GPDMA.
•
•
•
Write directly to the Channel Enable bit. Any outstanding data in the FIFOs is lost if
this method is used.
Use the Active and Halt bits in conjunction with the Channel Enable bit.
Wait until the transfer completes. The channel is then automatically disabled.
“Channel Configuration Registers (DMACC0Configuration - 0xFFE0 4110 and
DMACC1Configuration - 0xFFE0
be ignored.
This bit indicates whether there is any data in the channel which has to be transferred.
– Read the DMACEnbldChns Register and find out which channels are inactive (see
– Choose an inactive channel that has the required priority.
Section 32–6.1.8 “Enabled Channel Register (DMACEnbldChns - 0xFFE0
Chapter 32: LPC24XX General Purpose DMA (GPDMA) controller
Rev. 04 — 26 August 2009
Section 32–6.2.6 “Channel Configuration Registers
4130)”). This causes any further DMA requests to
4130)”). The current AHB transfer, if
(Section 32–6.2.6
UM10237
© NXP B.V. 2009. All rights reserved.
4130)”).
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401C)”).
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