LPC2458FET180,551 NXP Semiconductors, LPC2458FET180,551 Datasheet - Page 242
LPC2458FET180,551
Manufacturer Part Number
LPC2458FET180,551
Description
IC ARM7 MCU FLASH 512K 180TFBGA
Manufacturer
NXP Semiconductors
Series
LPC2400r
Specifications of LPC2458FET180,551
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
136
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
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
Package / Case
180-TFBGA
Processor Series
LPC24
Core
ARM7TDMI-S
Data Bus Width
32 bit
Data Ram Size
98 KB
Interface Type
CAN, Ethernet, I2C, I2S, IrDA, SPI, SSP, UART, USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
136
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, SAB-TFBGA180
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
On-chip Dac
10 bit, 1 Channel
Package
180TFBGA
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
For Use With
622-1023 - BOARD SCKT ADAPTER FOR TFBGA180622-1005 - 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
568-4258
935282454551
LPC2458FET180-S
935282454551
LPC2458FET180-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2458FET180,551
Manufacturer:
MICROCHIP
Quantity:
1 103
Company:
Part Number:
LPC2458FET180,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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UM10237_4
User manual
Fig 28. Receive descriptor memory layout
RxDescriptorNumber
RxDescriptor
1
2
3
4
5
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 datapath 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
received. The RxConsumeIndex is programmed by software and is the index of the next
descriptor that the software receive driver is going to process. When RxProduceIndex ==
RxConsumeIndex, the receive buffer is empty. When RxProduceIndex ==
RxConsumeIndex -1 (taking wraparound into account), the receive buffer is full and newly
received data would generate an overflow unless the software driver frees up one or more
descriptors.
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
PACKET
PACKET
PACKET
PACKET
PACKET
PACKET
Rev. 04 — 26 August 2009
DATA BUFFER
DATA BUFFER
DATA BUFFER
DATA BUFFER
DATA BUFFER
DATA BUFFER
RxStatus
Chapter 11: LPC24XX Ethernet
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusHashCRC
StatusInfo
StatusInfo
StatusInfo
StatusInfo
StatusInfo
StatusInfo
UM10237
© NXP B.V. 2009. All rights reserved.
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