LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 172
LPC1767FBD100,551
Manufacturer Part Number
LPC1767FBD100,551
Description
IC ARM CORTEX MCU 512K 100-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.LPC1767FBD100551.pdf
(2 pages)
2.LPC1767FBD100551.pdf
(840 pages)
3.LPC1767FBD100551.pdf
(65 pages)
Specifications of LPC1767FBD100,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
100MHz
Connectivity
Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
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
Package / Case
100-LQFP
Processor Series
LPC17
Core
ARM Cortex M3
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
568-4967
935289808551
935289808551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1767FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
10.15 Descriptor and status formats
UM10360
User manual
Fig 19. Receive descriptor memory layout
RxDescriptorNumber
10.15.1 Receive descriptors and statuses
RxDescriptor
1
2
3
4
5
This section defines the descriptor format for the transmit and receive scatter/gather DMA
engines. Each Ethernet frame can consist of one or more fragments. Each fragment
corresponds to a single descriptor. The DMA managers in the Ethernet block scatter (for
receive) and gather (for transmit) multiple fragments for a single Ethernet frame.
Figure 19
Receive descriptors are stored in an array in memory. The base address of the array is
stored in the RxDescriptor register, and should be aligned on a 4 byte address boundary.
The number of descriptors in the array is stored in the RxDescriptorNumber register using
a minus one encoding style e.g. if the array has 8 elements the register value should be 7.
Parallel to the descriptors there is an array of statuses. For each element of the descriptor
array there is an associated status field in the status array. The base address of the status
array is stored in the RxStatus register, and must be aligned on an 8 byte address
boundary. During operation (when the receive data path is enabled) the RxDescriptor,
RxStatus and RxDescriptorNumber registers should not be modified.
Two registers, RxConsumeIndex and RxProduceIndex, define the descriptor locations
that will be used next by hardware and software. Both registers act as counters starting at
0 and wrapping when they reach the value of RxDescriptorNumber. The RxProduceIndex
contains the index of the descriptor that is going to be filled with the next frame being
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
depicts the layout of the receive descriptors in memory.
PACKET
PACKET
PACKET
PACKET
PACKET
PACKET
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
DATA BUFFER
DATA BUFFER
DATA BUFFER
DATA BUFFER
DATA BUFFER
DATA BUFFER
RxStatus
Chapter 10: LPC17xx Ethernet
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusInfo
StatusInfo
StatusInfo
StatusInfo
StatusInfo
StatusInfo
UM10360
© NXP B.V. 2010. All rights reserved.
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