LPC1857FET256,551 NXP Semiconductors, LPC1857FET256,551 Datasheet - Page 524
LPC1857FET256,551
Manufacturer Part Number
LPC1857FET256,551
Description
IC MCU 32BIT 1MB FLASH 256LBGA
Manufacturer
NXP Semiconductors
Series
LPC18xxr
Datasheets
1.LPC1830FET256551.pdf
(87 pages)
2.LPC1810FET100551.pdf
(2 pages)
3.LPC1810FET100551.pdf
(1164 pages)
Specifications of LPC1857FET256,551
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, LCD, 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
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1857FET256,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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User manual
Fig 49. Receive DMA operation
Set descriptor error
No
disabled ?
Flush
intermediate descriptor
The DMA does not acknowledge accepting the status from the MTL until it has completed
the time stamp write-back and is ready to perform status write-back to the descriptor.
Close RDES0 as
Yes
Yes
No
RxDMA suspended
remaining frame
Yes
Flush disabled ?
Frame transfer
for next desc?
Own bit set
complete?
Flush the
Yes
All information provided in this document is subject to legal disclaimers.
No
No
new frame available
Poll demand /
Rev. 00.13 — 20 July 2011
No
No
Write data to buffer(s)
Fetch next descriptor
Close RDES0 as last
(Re-)Fetch next
Frame transfer
Start RxDMA
Own bit set?
Time stamp
Frame data
available ?
complete?
descriptor
descriptor
present?
(AHB)
error?
(AHB)
error?
(AHB)
error?
(AHB)
error?
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Start
No
No
Chapter 22: LPC18xx Ethernet
Wait for frame data
Write time stamp to
RDES2 & RDES3
No
Stop RxDMA
Yes
Yes
Yes
(AHB)
error?
UM10430
© NXP B.V. 2011. All rights reserved.
Yes
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