LPC1837FET256,551 NXP Semiconductors, LPC1837FET256,551 Datasheet - Page 293

• Manufacturer Part Number: LPC1837FET256,551
• Description: Microcontrollers (MCU) 32BIT ARM CORTEX-M3 MCU 136KB SRAM
• Manufacturer: NXP Semiconductors
• Series: LPC18xxr

Specifications of LPC1837FET256,551

• Core: ARM Cortex M3
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 150MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, Microwire, SD/MMC, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 80
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-LBGA
• Lead Free Status / Rohs Status: Details
• Other names: 935293795551

NXP Semiconductors
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User manual
A chain of descriptors is built up, each one pointing to the next in the series. To initialize
the DMA stream, the first LLI, 0x2002 0000, is programmed into the DMA Controller.
When the first packet of data has been transferred the next LLI is automatically loaded.
The final LLI is stored at 0x2002 0070 and contains:
Because the next LLI address is set to zero, this is the last descriptor, and the DMA
channel is disabled after transferring the last item of data. The channel is probably set to
generate an interrupt at this point to indicate to the ARM processor that the channel can
be reprogrammed.
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Transfer width, word (32-bit).
Transfer size, 3072 bytes (0xC00).
Source and destination burst sizes, 16 transfers.
Next LLI address, 0x2002 0020.
Source start address 0x2003 1200.
Destination address set to the destination peripheral address.
Transfer width, word (32-bit).
Transfer size, 3072 bytes (0xC00).
Source and destination burst sizes, 16 transfers.
Next LLI address, 0x0.
All information provided in this document is subject to legal disclaimers.
Chapter 16: LPC18xx General Purpose DMA (GPDMA) controller
Rev. 00.13 — 20 July 2011
UM10430
© NXP B.V. 2011. All rights reserved.
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