LPC1769FBD100,551 NXP Semiconductors, LPC1769FBD100,551 Datasheet - Page 610
LPC1769FBD100,551
Manufacturer Part Number
LPC1769FBD100,551
Description
IC ARM CORTEX MCU 512K 100-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.OM11043.pdf
(79 pages)
2.LPC1767FBD100551.pdf
(2 pages)
3.LPC1767FBD100551.pdf
(840 pages)
4.LPC1769FBD100551.pdf
(66 pages)
Specifications of LPC1769FBD100,551
Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
100-LQFP
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
120MHz
Connectivity
CAN, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
70
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC17
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
Ethernet, USB, OTG, CAN
Maximum Clock Frequency
120 MHz
Number Of Programmable I/os
70
Number Of Timers
4
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 8 Channel
On-chip Dac
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4966
935290522551
935290522551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1769FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10360
User manual
31.6.2.3 Memory-to-memory DMA flow
31.6.3 Interrupt requests
For a memory-to-memory DMA flow the following sequence occurs:
Note: Memory-to-memory transfers should be programmed with a low channel priority,
otherwise other DMA channels cannot access the bus until the memory-to-memory
transfer has finished, or other AHB masters cannot perform any transaction.
Interrupt requests can be generated when an AHB error is encountered or at the end of a
transfer (terminal count), after all the data corresponding to the current LLI has been
transferred to the destination. The interrupts can be masked by programming bits in the
relevant DMACCxControl and DMACCxConfig Channel Registers. The interrupt requests
from all DMA channels can be found in the DMACRawIntTCStat and DMACRawIntErrStat
registers. The masked versions of the DMA interrupt data is contained in the
DMACIntTCStat and DMACIntErrStat registers. The DMACIntStat register then combines
the DMACIntTCStat and DMACIntErrStat requests into a single register to enable the
source of an interrupt to be found quickly. Writing to the DMACIntTCClear or the
DMACIntErrClr Registers with a bit set to 1 enables selective clearing of interrupts.
7. When the destination DMA request goes active and there is data in the DMA
8. If an error occurs while transferring the data, an error interrupt is generated, the DMA
9. If the transfer has completed it is indicated by the transfer count reaching 0. The
1. Program and enable the DMA channel.
2. Transfer data whenever the DMA channel has the highest pending priority and the
3. If an error occurs while transferring the data, generate an error interrupt and disable
4. Decrement the transfer count.
5. If the count has reached zero:
Controller FIFO, transfer data into the destination peripheral.
stream is disabled, and the flow sequence ends.
following happens:
– The DMA Controller responds with a DMA acknowledge to the destination
– The terminal count interrupt is generated (this interrupt can be masked).
– If the DMACCxLLI Register is not 0, then reload the DMACCxSrcAddr,
DMA Controller gains mastership of the AHB bus.
the DMA stream.
– Generate a terminal count interrupt (the interrupt can be masked).
– If the DMACCxLLI Register is not 0, then reload the DMACCxSrcAddr,
peripheral.
DMACCxDestAddr, DMACCxLLI, and DMACCxControl Registers and go to back
to step 2. However, if DMACCxLLI is 0, the DMA stream is disabled and the flow
sequence ends.
DMACCxDestAddr, DMACCxLLI, and DMACCxControl Registers and go to back
to step 2. However, if DMACCxLLI is 0, the DMA stream is disabled and the flow
sequence ends.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Chapter 31: LPC17xx General Purpose DMA (GPDMA)
UM10360
© NXP B.V. 2010. All rights reserved.
610 of 840
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